drivers/staging/rtl8188eu/core/rtw_efuse.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  ******************************************************************************/
  15 #define _RTW_EFUSE_C_
  16
  17 #include <osdep_service.h>
  18 #include <drv_types.h>
  19 #include <rtw_efuse.h>
  20 #include <usb_ops_linux.h>
  21 #include <rtl8188e_hal.h>
  22 #include <rtw_iol.h>
  23
  24 #define REG_EFUSE_CTRL          0x0030
  25 #define EFUSE_CTRL                      REG_EFUSE_CTRL          /*  E-Fuse Control. */
  26
  27 enum{
  28                 VOLTAGE_V25                                             = 0x03,
  29                 LDOE25_SHIFT                                            = 28,
  30         };
  31
  32 /*
  33  * Function:    Efuse_PowerSwitch
  34  *
  35  * Overview:    When we want to enable write operation, we should change to
  36  *                              pwr on state. When we stop write, we should switch to 500k mode
  37  *                              and disable LDO 2.5V.
  38  */
  39
  40 void Efuse_PowerSwitch(
  41                 struct adapter *pAdapter,
  42                 u8 bWrite,
  43                 u8 PwrState)
  44 {
  45         u8 tempval;
  46         u16     tmpV16;
  47
  48         if (PwrState) {
  49                 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);
  50
  51                 /*  1.2V Power: From VDDON with Power Cut(0x0000h[15]), defualt valid */
  52                 tmpV16 = usb_read16(pAdapter, REG_SYS_ISO_CTRL);
  53                 if (!(tmpV16 & PWC_EV12V)) {
  54                         tmpV16 |= PWC_EV12V;
  55                          usb_write16(pAdapter, REG_SYS_ISO_CTRL, tmpV16);
  56                 }
  57                 /*  Reset: 0x0000h[28], default valid */
  58                 tmpV16 =  usb_read16(pAdapter, REG_SYS_FUNC_EN);
  59                 if (!(tmpV16 & FEN_ELDR)) {
  60                         tmpV16 |= FEN_ELDR;
  61                         usb_write16(pAdapter, REG_SYS_FUNC_EN, tmpV16);
  62                 }
  63
  64                 /*  Clock: Gated(0x0008h[5]) 8M(0x0008h[1]) clock from ANA, default valid */
  65                 tmpV16 = usb_read16(pAdapter, REG_SYS_CLKR);
  66                 if ((!(tmpV16 & LOADER_CLK_EN))  || (!(tmpV16 & ANA8M))) {
  67                         tmpV16 |= (LOADER_CLK_EN | ANA8M);
  68                         usb_write16(pAdapter, REG_SYS_CLKR, tmpV16);
  69                 }
  70
  71                 if (bWrite) {
  72                         /*  Enable LDO 2.5V before read/write action */
  73                         tempval = usb_read8(pAdapter, EFUSE_TEST+3);
  74                         tempval &= 0x0F;
  75                         tempval |= (VOLTAGE_V25 << 4);
  76                         usb_write8(pAdapter, EFUSE_TEST+3, (tempval | 0x80));
  77                 }
  78         } else {
  79                 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);
  80
  81                 if (bWrite) {
  82                         /*  Disable LDO 2.5V after read/write action */
  83                         tempval = usb_read8(pAdapter, EFUSE_TEST+3);
  84                         usb_write8(pAdapter, EFUSE_TEST+3, (tempval & 0x7F));
  85                 }
  86         }
  87 }
  88
  89 static void
  90 efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
  91 {
  92         u8 *efuseTbl = NULL;
  93         u8 rtemp8;
  94         u16     eFuse_Addr = 0;
  95         u8 offset, wren;
  96         u16     i, j;
  97         u16     **eFuseWord = NULL;
  98         u16     efuse_utilized = 0;
  99         u8 u1temp = 0;
 100
 101         efuseTbl = kzalloc(EFUSE_MAP_LEN_88E, GFP_KERNEL);
 102         if (!efuseTbl)
 103                 return;
 104
 105         eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
 106         if (!eFuseWord) {
 107                 DBG_88E("%s: alloc eFuseWord fail!\n", __func__);
 108                 goto eFuseWord_failed;
 109         }
 110
 111         /*  0. Refresh efuse init map as all oxFF. */
 112         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++)
 113                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 114                         eFuseWord[i][j] = 0xFFFF;
 115
 116         /*  */
 117         /*  1. Read the first byte to check if efuse is empty!!! */
 118         /*  */
 119         /*  */
 120         rtemp8 = *(phymap+eFuse_Addr);
 121         if (rtemp8 != 0xFF) {
 122                 efuse_utilized++;
 123                 eFuse_Addr++;
 124         } else {
 125                 DBG_88E("EFUSE is empty efuse_Addr-%d efuse_data =%x\n", eFuse_Addr, rtemp8);
 126                 goto exit;
 127         }
 128
 129         /*  */
 130         /*  2. Read real efuse content. Filter PG header and every section data. */
 131         /*  */
 132         while ((rtemp8 != 0xFF) && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 133                 /*  Check PG header for section num. */
 134                 if ((rtemp8 & 0x1F) == 0x0F) {          /* extended header */
 135                         u1temp = (rtemp8 & 0xE0) >> 5;
 136                         rtemp8 = *(phymap+eFuse_Addr);
 137                         if ((rtemp8 & 0x0F) == 0x0F) {
 138                                 eFuse_Addr++;
 139                                 rtemp8 = *(phymap+eFuse_Addr);
 140
 141                                 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E))
 142                                         eFuse_Addr++;
 143                                 continue;
 144                         } else {
 145                                 offset = ((rtemp8 & 0xF0) >> 1) | u1temp;
 146                                 wren = rtemp8 & 0x0F;
 147                                 eFuse_Addr++;
 148                         }
 149                 } else {
 150                         offset = (rtemp8 >> 4) & 0x0f;
 151                         wren = rtemp8 & 0x0f;
 152                 }
 153
 154                 if (offset < EFUSE_MAX_SECTION_88E) {
 155                         /*  Get word enable value from PG header */
 156                         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 157                                 /*  Check word enable condition in the section */
 158                                 if (!(wren & 0x01)) {
 159                                         rtemp8 = *(phymap+eFuse_Addr);
 160                                         eFuse_Addr++;
 161                                         efuse_utilized++;
 162                                         eFuseWord[offset][i] = (rtemp8 & 0xff);
 163                                         if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
 164                                                 break;
 165                                         rtemp8 = *(phymap+eFuse_Addr);
 166                                         eFuse_Addr++;
 167                                         efuse_utilized++;
 168                                         eFuseWord[offset][i] |= (((u16)rtemp8 << 8) & 0xff00);
 169
 170                                         if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
 171                                                 break;
 172                                 }
 173                                 wren >>= 1;
 174                         }
 175                 }
 176                 /*  Read next PG header */
 177                 rtemp8 = *(phymap+eFuse_Addr);
 178
 179                 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 180                         efuse_utilized++;
 181                         eFuse_Addr++;
 182                 }
 183         }
 184
 185         /*  */
 186         /*  3. Collect 16 sections and 4 word unit into Efuse map. */
 187         /*  */
 188         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++) {
 189                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 190                         efuseTbl[(i*8)+(j*2)] = (eFuseWord[i][j] & 0xff);
 191                         efuseTbl[(i*8)+((j*2)+1)] = ((eFuseWord[i][j] >> 8) & 0xff);
 192                 }
 193         }
 194
 195         /*  */
 196         /*  4. Copy from Efuse map to output pointer memory!!! */
 197         /*  */
 198         for (i = 0; i < _size_byte; i++)
 199                 pbuf[i] = efuseTbl[_offset+i];
 200
 201         /*  */
 202         /*  5. Calculate Efuse utilization. */
 203         /*  */
 204
 205 exit:
 206         kfree(eFuseWord);
 207
 208 eFuseWord_failed:
 209         kfree(efuseTbl);
 210 }
 211
 212 static void efuse_read_phymap_from_txpktbuf(
 213         struct adapter  *adapter,
 214         int bcnhead,    /* beacon head, where FW store len(2-byte) and efuse physical map. */
 215         u8 *content,    /* buffer to store efuse physical map */
 216         u16 *size       /* for efuse content: the max byte to read. will update to byte read */
 217         )
 218 {
 219         u16 dbg_addr = 0;
 220         unsigned long start = 0;
 221         u8 reg_0x143 = 0;
 222         u32 lo32 = 0, hi32 = 0;
 223         u16 len = 0, count = 0;
 224         int i = 0;
 225         u16 limit = *size;
 226
 227         u8 *pos = content;
 228
 229         if (bcnhead < 0) /* if not valid */
 230                 bcnhead = usb_read8(adapter, REG_TDECTRL+1);
 231
 232         DBG_88E("%s bcnhead:%d\n", __func__, bcnhead);
 233
 234         usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
 235
 236         dbg_addr = bcnhead*128/8; /* 8-bytes addressing */
 237
 238         while (1) {
 239                 usb_write16(adapter, REG_PKTBUF_DBG_ADDR, dbg_addr+i);
 240
 241                 usb_write8(adapter, REG_TXPKTBUF_DBG, 0);
 242                 start = jiffies;
 243                 while (!(reg_0x143 = usb_read8(adapter, REG_TXPKTBUF_DBG)) &&
 244                        jiffies_to_msecs(jiffies - start) < 1000) {
 245                         DBG_88E("%s polling reg_0x143:0x%02x, reg_0x106:0x%02x\n", __func__, reg_0x143, usb_read8(adapter, 0x106));
 246                         usleep_range(1000, 2000);
 247                 }
 248
 249                 lo32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_L);
 250                 hi32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_H);
 251
 252                 if (i == 0) {
 253                         u8 lenc[2];
 254                         u16 lenbak, aaabak;
 255                         u16 aaa;
 256
 257                         lenc[0] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L);
 258                         lenc[1] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L+1);
 259
 260                         aaabak = le16_to_cpup((__le16 *)lenc);
 261                         lenbak = le16_to_cpu(*((__le16 *)lenc));
 262                         aaa = le16_to_cpup((__le16 *)&lo32);
 263                         len = le16_to_cpu(*((__le16 *)&lo32));
 264
 265                         limit = min_t(u16, len-2, limit);
 266
 267                         DBG_88E("%s len:%u, lenbak:%u, aaa:%u, aaabak:%u\n", __func__, len, lenbak, aaa, aaabak);
 268
 269                         memcpy(pos, ((u8 *)&lo32)+2, (limit >= count+2) ? 2 : limit-count);
 270                         count += (limit >= count+2) ? 2 : limit-count;
 271                         pos = content+count;
 272
 273                 } else {
 274                         memcpy(pos, ((u8 *)&lo32), (limit >= count+4) ? 4 : limit-count);
 275                         count += (limit >= count+4) ? 4 : limit-count;
 276                         pos = content+count;
 277                 }
 278
 279                 if (limit > count && len-2 > count) {
 280                         memcpy(pos, (u8 *)&hi32, (limit >= count+4) ? 4 : limit-count);
 281                         count += (limit >= count+4) ? 4 : limit-count;
 282                         pos = content+count;
 283                 }
 284
 285                 if (limit <= count || len-2 <= count)
 286                         break;
 287                 i++;
 288         }
 289         usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, DISABLE_TRXPKT_BUF_ACCESS);
 290         DBG_88E("%s read count:%u\n", __func__, count);
 291         *size = count;
 292 }
 293
 294 static s32 iol_read_efuse(struct adapter *padapter, u8 txpktbuf_bndy, u16 offset, u16 size_byte, u8 *logical_map)
 295 {
 296         s32 status = _FAIL;
 297         u8 physical_map[512];
 298         u16 size = 512;
 299
 300         usb_write8(padapter, REG_TDECTRL+1, txpktbuf_bndy);
 301         memset(physical_map, 0xFF, 512);
 302         usb_write8(padapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
 303         status = iol_execute(padapter, CMD_READ_EFUSE_MAP);
 304         if (status == _SUCCESS)
 305                 efuse_read_phymap_from_txpktbuf(padapter, txpktbuf_bndy, physical_map, &size);
 306         efuse_phymap_to_logical(physical_map, offset, size_byte, logical_map);
 307         return status;
 308 }
 309
 310 void efuse_ReadEFuse(struct adapter *Adapter, u8 efuseType, u16 _offset, u16 _size_byte, u8 *pbuf)
 311 {
 312
 313         if (rtw_IOL_applied(Adapter)) {
 314                 rtw_hal_power_on(Adapter);
 315                 iol_mode_enable(Adapter, 1);
 316                 iol_read_efuse(Adapter, 0, _offset, _size_byte, pbuf);
 317                 iol_mode_enable(Adapter, 0);
 318         }
 319 }
 320
 321 u8 Efuse_WordEnableDataWrite(struct adapter *pAdapter, u16 efuse_addr, u8 word_en, u8 *data)
 322 {
 323         u16     tmpaddr = 0;
 324         u16     start_addr = efuse_addr;
 325         u8 badworden = 0x0F;
 326         u8 tmpdata[8];
 327
 328         memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
 329
 330         if (!(word_en & BIT(0))) {
 331                 tmpaddr = start_addr;
 332                 efuse_OneByteWrite(pAdapter, start_addr++, data[0]);
 333                 efuse_OneByteWrite(pAdapter, start_addr++, data[1]);
 334
 335                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[0]);
 336                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[1]);
 337                 if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
 338                         badworden &= (~BIT(0));
 339         }
 340         if (!(word_en & BIT(1))) {
 341                 tmpaddr = start_addr;
 342                 efuse_OneByteWrite(pAdapter, start_addr++, data[2]);
 343                 efuse_OneByteWrite(pAdapter, start_addr++, data[3]);
 344
 345                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[2]);
 346                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[3]);
 347                 if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
 348                         badworden &= (~BIT(1));
 349         }
 350         if (!(word_en & BIT(2))) {
 351                 tmpaddr = start_addr;
 352                 efuse_OneByteWrite(pAdapter, start_addr++, data[4]);
 353                 efuse_OneByteWrite(pAdapter, start_addr++, data[5]);
 354
 355                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[4]);
 356                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[5]);
 357                 if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
 358                         badworden &= (~BIT(2));
 359         }
 360         if (!(word_en & BIT(3))) {
 361                 tmpaddr = start_addr;
 362                 efuse_OneByteWrite(pAdapter, start_addr++, data[6]);
 363                 efuse_OneByteWrite(pAdapter, start_addr++, data[7]);
 364
 365                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[6]);
 366                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[7]);
 367                 if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
 368                         badworden &= (~BIT(3));
 369         }
 370         return badworden;
 371 }
 372
 373 static u16 Efuse_GetCurrentSize(struct adapter *pAdapter)
 374 {
 375         int     bContinual = true;
 376         u16     efuse_addr = 0;
 377         u8 hoffset = 0, hworden = 0;
 378         u8 efuse_data, word_cnts = 0;
 379
 380         rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 381
 382         while (bContinual &&
 383                efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) &&
 384                AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 385                 if (efuse_data != 0xFF) {
 386                         if ((efuse_data&0x1F) == 0x0F) {                /* extended header */
 387                                 hoffset = efuse_data;
 388                                 efuse_addr++;
 389                                 efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 390                                 if ((efuse_data & 0x0F) == 0x0F) {
 391                                         efuse_addr++;
 392                                         continue;
 393                                 } else {
 394                                         hoffset = ((hoffset & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 395                                         hworden = efuse_data & 0x0F;
 396                                 }
 397                         } else {
 398                                 hoffset = (efuse_data>>4) & 0x0F;
 399                                 hworden =  efuse_data & 0x0F;
 400                         }
 401                         word_cnts = Efuse_CalculateWordCnts(hworden);
 402                         /* read next header */
 403                         efuse_addr = efuse_addr + (word_cnts*2)+1;
 404                 } else {
 405                         bContinual = false;
 406                 }
 407         }
 408
 409         rtw_hal_set_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 410
 411         return efuse_addr;
 412 }
 413
 414 int Efuse_PgPacketRead(struct adapter *pAdapter, u8 offset, u8 *data)
 415 {
 416         u8 ReadState = PG_STATE_HEADER;
 417         int     bContinual = true;
 418         int     bDataEmpty = true;
 419         u8 efuse_data, word_cnts = 0;
 420         u16     efuse_addr = 0;
 421         u8 hoffset = 0, hworden = 0;
 422         u8 tmpidx = 0;
 423         u8 tmpdata[8];
 424         u8 tmp_header = 0;
 425
 426         if (!data)
 427                 return false;
 428         if (offset > EFUSE_MAX_SECTION_88E)
 429                 return false;
 430
 431         memset(data, 0xff, sizeof(u8) * PGPKT_DATA_SIZE);
 432         memset(tmpdata, 0xff, sizeof(u8) * PGPKT_DATA_SIZE);
 433
 434         /*  <Roger_TODO> Efuse has been pre-programmed dummy 5Bytes at the end of Efuse by CP. */
 435         /*  Skip dummy parts to prevent unexpected data read from Efuse. */
 436         /*  By pass right now. 2009.02.19. */
 437         while (bContinual && AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 438                 /*   Header Read ------------- */
 439                 if (ReadState & PG_STATE_HEADER) {
 440                         if (efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) && (efuse_data != 0xFF)) {
 441                                 if (EXT_HEADER(efuse_data)) {
 442                                         tmp_header = efuse_data;
 443                                         efuse_addr++;
 444                                         efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 445                                         if (!ALL_WORDS_DISABLED(efuse_data)) {
 446                                                 hoffset = ((tmp_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 447                                                 hworden = efuse_data & 0x0F;
 448                                         } else {
 449                                                 DBG_88E("Error, All words disabled\n");
 450                                                 efuse_addr++;
 451                                                 continue;
 452                                         }
 453                                 } else {
 454                                         hoffset = (efuse_data>>4) & 0x0F;
 455                                         hworden =  efuse_data & 0x0F;
 456                                 }
 457                                 word_cnts = Efuse_CalculateWordCnts(hworden);
 458                                 bDataEmpty = true;
 459
 460                                 if (hoffset == offset) {
 461                                         for (tmpidx = 0; tmpidx < word_cnts*2; tmpidx++) {
 462                                                 if (efuse_OneByteRead(pAdapter, efuse_addr+1+tmpidx, &efuse_data)) {
 463                                                         tmpdata[tmpidx] = efuse_data;
 464                                                         if (efuse_data != 0xff)
 465                                                                 bDataEmpty = false;
 466                                                 }
 467                                         }
 468                                         if (bDataEmpty == false) {
 469                                                 ReadState = PG_STATE_DATA;
 470                                         } else {/* read next header */
 471                                                 efuse_addr = efuse_addr + (word_cnts*2)+1;
 472                                                 ReadState = PG_STATE_HEADER;
 473                                         }
 474                                 } else {/* read next header */
 475                                         efuse_addr = efuse_addr + (word_cnts*2)+1;
 476                                         ReadState = PG_STATE_HEADER;
 477                                 }
 478                         } else {
 479                                 bContinual = false;
 480                         }
 481                 } else if (ReadState & PG_STATE_DATA) {
 482                         /*   Data section Read ------------- */
 483                         efuse_WordEnableDataRead(hworden, tmpdata, data);
 484                         efuse_addr = efuse_addr + (word_cnts*2)+1;
 485                         ReadState = PG_STATE_HEADER;
 486                 }
 487
 488         }
 489
 490         if ((data[0] == 0xff) && (data[1] == 0xff) && (data[2] == 0xff)  && (data[3] == 0xff) &&
 491             (data[4] == 0xff) && (data[5] == 0xff) && (data[6] == 0xff)  && (data[7] == 0xff))
 492                 return false;
 493         else
 494                 return true;
 495 }
 496
 497 static bool hal_EfuseFixHeaderProcess(struct adapter *pAdapter, u8 efuseType, struct pgpkt *pFixPkt, u16 *pAddr)
 498 {
 499         u8 originaldata[8], badworden = 0;
 500         u16     efuse_addr = *pAddr;
 501         u32     PgWriteSuccess = 0;
 502
 503         memset(originaldata, 0xff, 8);
 504
 505         if (Efuse_PgPacketRead(pAdapter, pFixPkt->offset, originaldata)) {
 506                 /* check if data exist */
 507                 badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr+1, pFixPkt->word_en, originaldata);
 508
 509                 if (badworden != 0xf) { /*  write fail */
 510                         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pFixPkt->offset, badworden, originaldata);
 511
 512                         if (!PgWriteSuccess)
 513                                 return false;
 514                         else
 515                                 efuse_addr = Efuse_GetCurrentSize(pAdapter);
 516                 } else {
 517                         efuse_addr = efuse_addr + (pFixPkt->word_cnts*2) + 1;
 518                 }
 519         } else {
 520                 efuse_addr = efuse_addr + (pFixPkt->word_cnts*2) + 1;
 521         }
 522         *pAddr = efuse_addr;
 523         return true;
 524 }
 525
 526 static bool hal_EfusePgPacketWrite2ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 527 {
 528         bool bRet = false;
 529         u16 efuse_addr = *pAddr;
 530         u16 efuse_max_available_len =
 531                 EFUSE_REAL_CONTENT_LEN_88E - EFUSE_OOB_PROTECT_BYTES_88E;
 532         u8 pg_header = 0, tmp_header = 0, pg_header_temp = 0;
 533         u8 repeatcnt = 0;
 534
 535         while (efuse_addr < efuse_max_available_len) {
 536                 pg_header = ((pTargetPkt->offset & 0x07) << 5) | 0x0F;
 537                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 538                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 539
 540                 while (tmp_header == 0xFF) {
 541                         if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 542                                 return false;
 543
 544                         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 545                         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 546                 }
 547
 548                 /* to write ext_header */
 549                 if (tmp_header == pg_header) {
 550                         efuse_addr++;
 551                         pg_header_temp = pg_header;
 552                         pg_header = ((pTargetPkt->offset & 0x78) << 1) | pTargetPkt->word_en;
 553
 554                         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 555                         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 556
 557                         while (tmp_header == 0xFF) {
 558                                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 559                                         return false;
 560
 561                                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 562                                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 563                         }
 564
 565                         if ((tmp_header & 0x0F) == 0x0F) {      /* word_en PG fail */
 566                                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 567                                         return false;
 568
 569                                 efuse_addr++;
 570                                 continue;
 571                         } else if (pg_header != tmp_header) {   /* offset PG fail */
 572                                 struct pgpkt    fixPkt;
 573
 574                                 fixPkt.offset = ((pg_header_temp & 0xE0) >> 5) | ((tmp_header & 0xF0) >> 1);
 575                                 fixPkt.word_en = tmp_header & 0x0F;
 576                                 fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 577                                 if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 578                                         return false;
 579                         } else {
 580                                 bRet = true;
 581                                 break;
 582                         }
 583                 } else if ((tmp_header & 0x1F) == 0x0F) {               /* wrong extended header */
 584                         efuse_addr += 2;
 585                         continue;
 586                 }
 587         }
 588
 589         *pAddr = efuse_addr;
 590         return bRet;
 591 }
 592
 593 static bool hal_EfusePgPacketWrite1ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 594 {
 595         bool bRet = false;
 596         u8 pg_header = 0, tmp_header = 0;
 597         u16     efuse_addr = *pAddr;
 598         u8 repeatcnt = 0;
 599
 600         pg_header = ((pTargetPkt->offset << 4) & 0xf0) | pTargetPkt->word_en;
 601
 602         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 603         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 604
 605         while (tmp_header == 0xFF) {
 606                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 607                         return false;
 608                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 609                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 610         }
 611
 612         if (pg_header == tmp_header) {
 613                 bRet = true;
 614         } else {
 615                 struct pgpkt    fixPkt;
 616
 617                 fixPkt.offset = (tmp_header>>4) & 0x0F;
 618                 fixPkt.word_en = tmp_header & 0x0F;
 619                 fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 620                 if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 621                         return false;
 622         }
 623
 624         *pAddr = efuse_addr;
 625         return bRet;
 626 }
 627
 628 static bool hal_EfusePgPacketWriteData(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 629 {
 630         u16     efuse_addr = *pAddr;
 631         u8 badworden = 0;
 632         u32     PgWriteSuccess = 0;
 633
 634         badworden = 0x0f;
 635         badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr+1, pTargetPkt->word_en, pTargetPkt->data);
 636         if (badworden == 0x0F) {
 637                 /*  write ok */
 638                 return true;
 639         }
 640         /* reorganize other pg packet */
 641         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 642         if (!PgWriteSuccess)
 643                 return false;
 644         else
 645                 return true;
 646 }
 647
 648 static bool
 649 hal_EfusePgPacketWriteHeader(
 650                                 struct adapter *pAdapter,
 651                                 u8 efuseType,
 652                                 u16                             *pAddr,
 653                                 struct pgpkt *pTargetPkt)
 654 {
 655         bool bRet = false;
 656
 657         if (pTargetPkt->offset >= EFUSE_MAX_SECTION_BASE)
 658                 bRet = hal_EfusePgPacketWrite2ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 659         else
 660                 bRet = hal_EfusePgPacketWrite1ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 661
 662         return bRet;
 663 }
 664
 665 static bool wordEnMatched(struct pgpkt *pTargetPkt, struct pgpkt *pCurPkt,
 666                           u8 *pWden)
 667 {
 668         u8 match_word_en = 0x0F;        /*  default all words are disabled */
 669
 670         /*  check if the same words are enabled both target and current PG packet */
 671         if (((pTargetPkt->word_en & BIT(0)) == 0) &&
 672             ((pCurPkt->word_en & BIT(0)) == 0))
 673                 match_word_en &= ~BIT(0);                               /*  enable word 0 */
 674         if (((pTargetPkt->word_en & BIT(1)) == 0) &&
 675             ((pCurPkt->word_en & BIT(1)) == 0))
 676                 match_word_en &= ~BIT(1);                               /*  enable word 1 */
 677         if (((pTargetPkt->word_en & BIT(2)) == 0) &&
 678             ((pCurPkt->word_en & BIT(2)) == 0))
 679                 match_word_en &= ~BIT(2);                               /*  enable word 2 */
 680         if (((pTargetPkt->word_en & BIT(3)) == 0) &&
 681             ((pCurPkt->word_en & BIT(3)) == 0))
 682                 match_word_en &= ~BIT(3);                               /*  enable word 3 */
 683
 684         *pWden = match_word_en;
 685
 686         if (match_word_en != 0xf)
 687                 return true;
 688         else
 689                 return false;
 690 }
 691
 692 static bool hal_EfuseCheckIfDatafollowed(struct adapter *pAdapter, u8 word_cnts, u16 startAddr)
 693 {
 694         bool bRet = false;
 695         u8 i, efuse_data;
 696
 697         for (i = 0; i < (word_cnts*2); i++) {
 698                 if (efuse_OneByteRead(pAdapter, (startAddr+i), &efuse_data) && (efuse_data != 0xFF))
 699                         bRet = true;
 700         }
 701         return bRet;
 702 }
 703
 704 static bool hal_EfusePartialWriteCheck(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 705 {
 706         bool bRet = false;
 707         u8 i, efuse_data = 0, cur_header = 0;
 708         u8 matched_wden = 0, badworden = 0;
 709         u16 startAddr = 0;
 710         u16 efuse_max_available_len =
 711                 EFUSE_REAL_CONTENT_LEN_88E - EFUSE_OOB_PROTECT_BYTES_88E;
 712         struct pgpkt curPkt;
 713
 714         rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&startAddr);
 715         startAddr %= EFUSE_REAL_CONTENT_LEN;
 716
 717         while (1) {
 718                 if (startAddr >= efuse_max_available_len) {
 719                         bRet = false;
 720                         break;
 721                 }
 722
 723                 if (efuse_OneByteRead(pAdapter, startAddr, &efuse_data) && (efuse_data != 0xFF)) {
 724                         if (EXT_HEADER(efuse_data)) {
 725                                 cur_header = efuse_data;
 726                                 startAddr++;
 727                                 efuse_OneByteRead(pAdapter, startAddr, &efuse_data);
 728                                 if (ALL_WORDS_DISABLED(efuse_data)) {
 729                                         bRet = false;
 730                                         break;
 731                                 } else {
 732                                         curPkt.offset = ((cur_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 733                                         curPkt.word_en = efuse_data & 0x0F;
 734                                 }
 735                         } else {
 736                                 cur_header  =  efuse_data;
 737                                 curPkt.offset = (cur_header>>4) & 0x0F;
 738                                 curPkt.word_en = cur_header & 0x0F;
 739                         }
 740
 741                         curPkt.word_cnts = Efuse_CalculateWordCnts(curPkt.word_en);
 742                         /*  if same header is found but no data followed */
 743                         /*  write some part of data followed by the header. */
 744                         if ((curPkt.offset == pTargetPkt->offset) &&
 745                             (!hal_EfuseCheckIfDatafollowed(pAdapter, curPkt.word_cnts, startAddr+1)) &&
 746                             wordEnMatched(pTargetPkt, &curPkt, &matched_wden)) {
 747                                 /*  Here to write partial data */
 748                                 badworden = Efuse_WordEnableDataWrite(pAdapter, startAddr+1, matched_wden, pTargetPkt->data);
 749                                 if (badworden != 0x0F) {
 750                                         u32     PgWriteSuccess = 0;
 751                                         /*  if write fail on some words, write these bad words again */
 752
 753                                         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 754
 755                                         if (!PgWriteSuccess) {
 756                                                 bRet = false;   /*  write fail, return */
 757                                                 break;
 758                                         }
 759                                 }
 760                                 /*  partial write ok, update the target packet for later use */
 761                                 for (i = 0; i < 4; i++) {
 762                                         if ((matched_wden & (0x1<<i)) == 0)     /*  this word has been written */
 763                                                 pTargetPkt->word_en |= (0x1<<i);        /*  disable the word */
 764                                 }
 765                                 pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 766                         }
 767                         /*  read from next header */
 768                         startAddr = startAddr + (curPkt.word_cnts*2) + 1;
 769                 } else {
 770                         /*  not used header, 0xff */
 771                         *pAddr = startAddr;
 772                         bRet = true;
 773                         break;
 774                 }
 775         }
 776         return bRet;
 777 }
 778
 779 static bool
 780 hal_EfusePgCheckAvailableAddr(
 781                 struct adapter *pAdapter,
 782                 u8 efuseType
 783         )
 784 {
 785         if (Efuse_GetCurrentSize(pAdapter) >= EFUSE_MAP_LEN_88E)
 786                 return false;
 787         return true;
 788 }
 789
 790 static void hal_EfuseConstructPGPkt(u8 offset, u8 word_en, u8 *pData, struct pgpkt *pTargetPkt)
 791 {
 792         memset((void *)pTargetPkt->data, 0xFF, sizeof(u8)*8);
 793         pTargetPkt->offset = offset;
 794         pTargetPkt->word_en = word_en;
 795         efuse_WordEnableDataRead(word_en, pData, pTargetPkt->data);
 796         pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 797 }
 798
 799 bool Efuse_PgPacketWrite(struct adapter *pAdapter, u8 offset, u8 word_en, u8 *pData)
 800 {
 801         struct pgpkt    targetPkt;
 802         u16                     startAddr = 0;
 803         u8 efuseType = EFUSE_WIFI;
 804
 805         if (!hal_EfusePgCheckAvailableAddr(pAdapter, efuseType))
 806                 return false;
 807
 808         hal_EfuseConstructPGPkt(offset, word_en, pData, &targetPkt);
 809
 810         if (!hal_EfusePartialWriteCheck(pAdapter, efuseType, &startAddr, &targetPkt))
 811                 return false;
 812
 813         if (!hal_EfusePgPacketWriteHeader(pAdapter, efuseType, &startAddr, &targetPkt))
 814                 return false;
 815
 816         if (!hal_EfusePgPacketWriteData(pAdapter, efuseType, &startAddr, &targetPkt))
 817                 return false;
 818
 819         return true;
 820 }
 821
 822 u8 Efuse_CalculateWordCnts(u8 word_en)
 823 {
 824         u8 word_cnts = 0;
 825
 826         if (!(word_en & BIT(0)))
 827                 word_cnts++; /*  0 : write enable */
 828         if (!(word_en & BIT(1)))
 829                 word_cnts++;
 830         if (!(word_en & BIT(2)))
 831                 word_cnts++;
 832         if (!(word_en & BIT(3)))
 833                 word_cnts++;
 834         return word_cnts;
 835 }
 836
 837 u8 efuse_OneByteRead(struct adapter *pAdapter, u16 addr, u8 *data)
 838 {
 839         u8 tmpidx = 0;
 840         u8 result;
 841
 842         usb_write8(pAdapter, EFUSE_CTRL+1, (u8)(addr & 0xff));
 843         usb_write8(pAdapter, EFUSE_CTRL+2, ((u8)((addr>>8) & 0x03)) |
 844                    (usb_read8(pAdapter, EFUSE_CTRL+2) & 0xFC));
 845
 846         usb_write8(pAdapter, EFUSE_CTRL+3,  0x72);/* read cmd */
 847
 848         while (!(0x80 & usb_read8(pAdapter, EFUSE_CTRL+3)) && (tmpidx < 100))
 849                 tmpidx++;
 850         if (tmpidx < 100) {
 851                 *data = usb_read8(pAdapter, EFUSE_CTRL);
 852                 result = true;
 853         } else {
 854                 *data = 0xff;
 855                 result = false;
 856         }
 857         return result;
 858 }
 859
 860 u8 efuse_OneByteWrite(struct adapter *pAdapter, u16 addr, u8 data)
 861 {
 862         u8 tmpidx = 0;
 863         u8 result;
 864
 865         usb_write8(pAdapter, EFUSE_CTRL+1, (u8)(addr&0xff));
 866         usb_write8(pAdapter, EFUSE_CTRL+2,
 867                    (usb_read8(pAdapter, EFUSE_CTRL+2) & 0xFC) |
 868                    (u8)((addr>>8) & 0x03));
 869         usb_write8(pAdapter, EFUSE_CTRL, data);/* data */
 870
 871         usb_write8(pAdapter, EFUSE_CTRL+3, 0xF2);/* write cmd */
 872
 873         while ((0x80 &  usb_read8(pAdapter, EFUSE_CTRL+3)) && (tmpidx < 100))
 874                 tmpidx++;
 875
 876         if (tmpidx < 100)
 877                 result = true;
 878         else
 879                 result = false;
 880
 881         return result;
 882 }
 883
 884 /*
 885  * Overview:   Read allowed word in current efuse section data.
 886  */
 887 void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata)
 888 {
 889         if (!(word_en & BIT(0))) {
 890                 targetdata[0] = sourdata[0];
 891                 targetdata[1] = sourdata[1];
 892         }
 893         if (!(word_en & BIT(1))) {
 894                 targetdata[2] = sourdata[2];
 895                 targetdata[3] = sourdata[3];
 896         }
 897         if (!(word_en & BIT(2))) {
 898                 targetdata[4] = sourdata[4];
 899                 targetdata[5] = sourdata[5];
 900         }
 901         if (!(word_en & BIT(3))) {
 902                 targetdata[6] = sourdata[6];
 903                 targetdata[7] = sourdata[7];
 904         }
 905 }
 906
 907 /*
 908  * Overview:    Read All Efuse content
 909  */
 910 static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 efuseType, u8 *Efuse)
 911 {
 912         Efuse_PowerSwitch(pAdapter, false, true);
 913
 914         efuse_ReadEFuse(pAdapter, efuseType, 0, EFUSE_MAP_LEN_88E, Efuse);
 915
 916         Efuse_PowerSwitch(pAdapter, false, false);
 917 }
 918
 919 /*
 920  * Overview:    Transfer current EFUSE content to shadow init and modify map.
 921  */
 922 void EFUSE_ShadowMapUpdate(
 923         struct adapter *pAdapter,
 924         u8 efuseType)
 925 {
 926         struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
 927
 928         if (pEEPROM->bautoload_fail_flag)
 929                 memset(pEEPROM->efuse_eeprom_data, 0xFF, EFUSE_MAP_LEN_88E);
 930         else
 931                 Efuse_ReadAllMap(pAdapter, efuseType, pEEPROM->efuse_eeprom_data);
 932 }