kernel/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  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 #define _RTW_EFUSE_C_
  21
  22 #include <osdep_service.h>
  23 #include <drv_types.h>
  24 #include <rtw_efuse.h>
  25 #include <usb_ops_linux.h>
  26 #include <rtl8188e_hal.h>
  27 #include <rtw_iol.h>
  28
  29 #define REG_EFUSE_CTRL          0x0030
  30 #define EFUSE_CTRL                      REG_EFUSE_CTRL          /*  E-Fuse Control. */
  31
  32 enum{
  33                 VOLTAGE_V25                                             = 0x03,
  34                 LDOE25_SHIFT                                            = 28 ,
  35         };
  36
  37 /*
  38  * Function:    Efuse_PowerSwitch
  39  *
  40  * Overview:    When we want to enable write operation, we should change to
  41  *                              pwr on state. When we stop write, we should switch to 500k mode
  42  *                              and disable LDO 2.5V.
  43  */
  44
  45 void Efuse_PowerSwitch(
  46                 struct adapter *pAdapter,
  47                 u8 bWrite,
  48                 u8 PwrState)
  49 {
  50         u8 tempval;
  51         u16     tmpV16;
  52
  53         if (PwrState) {
  54                 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);
  55
  56                 /*  1.2V Power: From VDDON with Power Cut(0x0000h[15]), defualt valid */
  57                 tmpV16 = usb_read16(pAdapter, REG_SYS_ISO_CTRL);
  58                 if (!(tmpV16 & PWC_EV12V)) {
  59                         tmpV16 |= PWC_EV12V;
  60                          usb_write16(pAdapter, REG_SYS_ISO_CTRL, tmpV16);
  61                 }
  62                 /*  Reset: 0x0000h[28], default valid */
  63                 tmpV16 =  usb_read16(pAdapter, REG_SYS_FUNC_EN);
  64                 if (!(tmpV16 & FEN_ELDR)) {
  65                         tmpV16 |= FEN_ELDR;
  66                         usb_write16(pAdapter, REG_SYS_FUNC_EN, tmpV16);
  67                 }
  68
  69                 /*  Clock: Gated(0x0008h[5]) 8M(0x0008h[1]) clock from ANA, default valid */
  70                 tmpV16 = usb_read16(pAdapter, REG_SYS_CLKR);
  71                 if ((!(tmpV16 & LOADER_CLK_EN))  || (!(tmpV16 & ANA8M))) {
  72                         tmpV16 |= (LOADER_CLK_EN | ANA8M);
  73                         usb_write16(pAdapter, REG_SYS_CLKR, tmpV16);
  74                 }
  75
  76                 if (bWrite) {
  77                         /*  Enable LDO 2.5V before read/write action */
  78                         tempval = usb_read8(pAdapter, EFUSE_TEST+3);
  79                         tempval &= 0x0F;
  80                         tempval |= (VOLTAGE_V25 << 4);
  81                         usb_write8(pAdapter, EFUSE_TEST+3, (tempval | 0x80));
  82                 }
  83         } else {
  84                 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);
  85
  86                 if (bWrite) {
  87                         /*  Disable LDO 2.5V after read/write action */
  88                         tempval = usb_read8(pAdapter, EFUSE_TEST+3);
  89                         usb_write8(pAdapter, EFUSE_TEST+3, (tempval & 0x7F));
  90                 }
  91         }
  92 }
  93
  94 static void
  95 efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
  96 {
  97         u8 *efuseTbl = NULL;
  98         u8 rtemp8;
  99         u16     eFuse_Addr = 0;
 100         u8 offset, wren;
 101         u16     i, j;
 102         u16     **eFuseWord = NULL;
 103         u16     efuse_utilized = 0;
 104         u8 u1temp = 0;
 105
 106         efuseTbl = kzalloc(EFUSE_MAP_LEN_88E, GFP_KERNEL);
 107         if (efuseTbl == NULL) {
 108                 DBG_88E("%s: alloc efuseTbl fail!\n", __func__);
 109                 return;
 110         }
 111
 112         eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
 113         if (eFuseWord == NULL) {
 114                 DBG_88E("%s: alloc eFuseWord fail!\n", __func__);
 115                 goto eFuseWord_failed;
 116         }
 117
 118         /*  0. Refresh efuse init map as all oxFF. */
 119         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++)
 120                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 121                         eFuseWord[i][j] = 0xFFFF;
 122
 123         /*  */
 124         /*  1. Read the first byte to check if efuse is empty!!! */
 125         /*  */
 126         /*  */
 127         rtemp8 = *(phymap+eFuse_Addr);
 128         if (rtemp8 != 0xFF) {
 129                 efuse_utilized++;
 130                 eFuse_Addr++;
 131         } else {
 132                 DBG_88E("EFUSE is empty efuse_Addr-%d efuse_data =%x\n", eFuse_Addr, rtemp8);
 133                 goto exit;
 134         }
 135
 136         /*  */
 137         /*  2. Read real efuse content. Filter PG header and every section data. */
 138         /*  */
 139         while ((rtemp8 != 0xFF) && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 140                 /*  Check PG header for section num. */
 141                 if ((rtemp8 & 0x1F) == 0x0F) {          /* extended header */
 142                         u1temp = (rtemp8 & 0xE0) >> 5;
 143                         rtemp8 = *(phymap+eFuse_Addr);
 144                         if ((rtemp8 & 0x0F) == 0x0F) {
 145                                 eFuse_Addr++;
 146                                 rtemp8 = *(phymap+eFuse_Addr);
 147
 148                                 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E))
 149                                         eFuse_Addr++;
 150                                 continue;
 151                         } else {
 152                                 offset = ((rtemp8 & 0xF0) >> 1) | u1temp;
 153                                 wren = rtemp8 & 0x0F;
 154                                 eFuse_Addr++;
 155                         }
 156                 } else {
 157                         offset = (rtemp8 >> 4) & 0x0f;
 158                         wren = rtemp8 & 0x0f;
 159                 }
 160
 161                 if (offset < EFUSE_MAX_SECTION_88E) {
 162                         /*  Get word enable value from PG header */
 163                         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 164                                 /*  Check word enable condition in the section */
 165                                 if (!(wren & 0x01)) {
 166                                         rtemp8 = *(phymap+eFuse_Addr);
 167                                         eFuse_Addr++;
 168                                         efuse_utilized++;
 169                                         eFuseWord[offset][i] = (rtemp8 & 0xff);
 170                                         if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
 171                                                 break;
 172                                         rtemp8 = *(phymap+eFuse_Addr);
 173                                         eFuse_Addr++;
 174                                         efuse_utilized++;
 175                                         eFuseWord[offset][i] |= (((u16)rtemp8 << 8) & 0xff00);
 176
 177                                         if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
 178                                                 break;
 179                                 }
 180                                 wren >>= 1;
 181                         }
 182                 }
 183                 /*  Read next PG header */
 184                 rtemp8 = *(phymap+eFuse_Addr);
 185
 186                 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 187                         efuse_utilized++;
 188                         eFuse_Addr++;
 189                 }
 190         }
 191
 192         /*  */
 193         /*  3. Collect 16 sections and 4 word unit into Efuse map. */
 194         /*  */
 195         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++) {
 196                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 197                         efuseTbl[(i*8)+(j*2)] = (eFuseWord[i][j] & 0xff);
 198                         efuseTbl[(i*8)+((j*2)+1)] = ((eFuseWord[i][j] >> 8) & 0xff);
 199                 }
 200         }
 201
 202         /*  */
 203         /*  4. Copy from Efuse map to output pointer memory!!! */
 204         /*  */
 205         for (i = 0; i < _size_byte; i++)
 206                 pbuf[i] = efuseTbl[_offset+i];
 207
 208         /*  */
 209         /*  5. Calculate Efuse utilization. */
 210         /*  */
 211
 212 exit:
 213         kfree(eFuseWord);
 214
 215 eFuseWord_failed:
 216         kfree(efuseTbl);
 217 }
 218
 219 static void efuse_read_phymap_from_txpktbuf(
 220         struct adapter  *adapter,
 221         int bcnhead,    /* beacon head, where FW store len(2-byte) and efuse physical map. */
 222         u8 *content,    /* buffer to store efuse physical map */
 223         u16 *size       /* for efuse content: the max byte to read. will update to byte read */
 224         )
 225 {
 226         u16 dbg_addr = 0;
 227         u32 start  = 0, passing_time = 0;
 228         u8 reg_0x143 = 0;
 229         u32 lo32 = 0, hi32 = 0;
 230         u16 len = 0, count = 0;
 231         int i = 0;
 232         u16 limit = *size;
 233
 234         u8 *pos = content;
 235
 236         if (bcnhead < 0) /* if not valid */
 237                 bcnhead = usb_read8(adapter, REG_TDECTRL+1);
 238
 239         DBG_88E("%s bcnhead:%d\n", __func__, bcnhead);
 240
 241         usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
 242
 243         dbg_addr = bcnhead*128/8; /* 8-bytes addressing */
 244
 245         while (1) {
 246                 usb_write16(adapter, REG_PKTBUF_DBG_ADDR, dbg_addr+i);
 247
 248                 usb_write8(adapter, REG_TXPKTBUF_DBG, 0);
 249                 start = jiffies;
 250                 while (!(reg_0x143 = usb_read8(adapter, REG_TXPKTBUF_DBG)) &&
 251                        (passing_time = rtw_get_passing_time_ms(start)) < 1000) {
 252                         DBG_88E("%s polling reg_0x143:0x%02x, reg_0x106:0x%02x\n", __func__, reg_0x143, usb_read8(adapter, 0x106));
 253                         usleep_range(1000, 2000);
 254                 }
 255
 256                 lo32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_L);
 257                 hi32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_H);
 258
 259                 if (i == 0) {
 260                         u8 lenc[2];
 261                         u16 lenbak, aaabak;
 262                         u16 aaa;
 263                         lenc[0] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L);
 264                         lenc[1] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L+1);
 265
 266                         aaabak = le16_to_cpup((__le16 *)lenc);
 267                         lenbak = le16_to_cpu(*((__le16 *)lenc));
 268                         aaa = le16_to_cpup((__le16 *)&lo32);
 269                         len = le16_to_cpu(*((__le16 *)&lo32));
 270
 271                         limit = (len-2 < limit) ? len-2 : limit;
 272
 273                         DBG_88E("%s len:%u, lenbak:%u, aaa:%u, aaabak:%u\n", __func__, len, lenbak, aaa, aaabak);
 274
 275                         memcpy(pos, ((u8 *)&lo32)+2, (limit >= count+2) ? 2 : limit-count);
 276                         count += (limit >= count+2) ? 2 : limit-count;
 277                         pos = content+count;
 278
 279                 } else {
 280                         memcpy(pos, ((u8 *)&lo32), (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                         memcpy(pos, (u8 *)&hi32, (limit >= count+4) ? 4 : limit-count);
 287                         count += (limit >= count+4) ? 4 : limit-count;
 288                         pos = content+count;
 289                 }
 290
 291                 if (limit <= count || len-2 <= count)
 292                         break;
 293                 i++;
 294         }
 295         usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, DISABLE_TRXPKT_BUF_ACCESS);
 296         DBG_88E("%s read count:%u\n", __func__, count);
 297         *size = count;
 298 }
 299
 300 static s32 iol_read_efuse(struct adapter *padapter, u8 txpktbuf_bndy, u16 offset, u16 size_byte, u8 *logical_map)
 301 {
 302         s32 status = _FAIL;
 303         u8 physical_map[512];
 304         u16 size = 512;
 305
 306         usb_write8(padapter, REG_TDECTRL+1, txpktbuf_bndy);
 307         memset(physical_map, 0xFF, 512);
 308         usb_write8(padapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
 309         status = iol_execute(padapter, CMD_READ_EFUSE_MAP);
 310         if (status == _SUCCESS)
 311                 efuse_read_phymap_from_txpktbuf(padapter, txpktbuf_bndy, physical_map, &size);
 312         efuse_phymap_to_logical(physical_map, offset, size_byte, logical_map);
 313         return status;
 314 }
 315
 316 void efuse_ReadEFuse(struct adapter *Adapter, u8 efuseType, u16 _offset, u16 _size_byte, u8 *pbuf)
 317 {
 318
 319         if (rtw_IOL_applied(Adapter)) {
 320                 rtw_hal_power_on(Adapter);
 321                 iol_mode_enable(Adapter, 1);
 322                 iol_read_efuse(Adapter, 0, _offset, _size_byte, pbuf);
 323                 iol_mode_enable(Adapter, 0);
 324         }
 325 }
 326
 327 /* Do not support BT */
 328 void EFUSE_GetEfuseDefinition(struct adapter *pAdapter, u8 efuseType, u8 type, void *pOut)
 329 {
 330         switch (type) {
 331         case TYPE_EFUSE_MAX_SECTION:
 332                 {
 333                         u8 *pMax_section;
 334                         pMax_section = pOut;
 335                         *pMax_section = EFUSE_MAX_SECTION_88E;
 336                 }
 337                 break;
 338         case TYPE_EFUSE_REAL_CONTENT_LEN:
 339                 {
 340                         u16 *pu2Tmp;
 341                         pu2Tmp = pOut;
 342                         *pu2Tmp = EFUSE_REAL_CONTENT_LEN_88E;
 343                 }
 344                 break;
 345         case TYPE_EFUSE_CONTENT_LEN_BANK:
 346                 {
 347                         u16 *pu2Tmp;
 348                         pu2Tmp = pOut;
 349                         *pu2Tmp = EFUSE_REAL_CONTENT_LEN_88E;
 350                 }
 351                 break;
 352         case TYPE_AVAILABLE_EFUSE_BYTES_BANK:
 353                 {
 354                         u16 *pu2Tmp;
 355                         pu2Tmp = pOut;
 356                         *pu2Tmp = (u16)(EFUSE_REAL_CONTENT_LEN_88E-EFUSE_OOB_PROTECT_BYTES_88E);
 357                 }
 358                 break;
 359         case TYPE_AVAILABLE_EFUSE_BYTES_TOTAL:
 360                 {
 361                         u16 *pu2Tmp;
 362                         pu2Tmp = pOut;
 363                         *pu2Tmp = (u16)(EFUSE_REAL_CONTENT_LEN_88E-EFUSE_OOB_PROTECT_BYTES_88E);
 364                 }
 365                 break;
 366         case TYPE_EFUSE_MAP_LEN:
 367                 {
 368                         u16 *pu2Tmp;
 369                         pu2Tmp = pOut;
 370                         *pu2Tmp = (u16)EFUSE_MAP_LEN_88E;
 371                 }
 372                 break;
 373         case TYPE_EFUSE_PROTECT_BYTES_BANK:
 374                 {
 375                         u8 *pu1Tmp;
 376                         pu1Tmp = pOut;
 377                         *pu1Tmp = (u8)(EFUSE_OOB_PROTECT_BYTES_88E);
 378                 }
 379                 break;
 380         default:
 381                 {
 382                         u8 *pu1Tmp;
 383                         pu1Tmp = pOut;
 384                         *pu1Tmp = 0;
 385                 }
 386                 break;
 387         }
 388 }
 389
 390 u8 Efuse_WordEnableDataWrite(struct adapter *pAdapter, u16 efuse_addr, u8 word_en, u8 *data)
 391 {
 392         u16     tmpaddr = 0;
 393         u16     start_addr = efuse_addr;
 394         u8 badworden = 0x0F;
 395         u8 tmpdata[8];
 396
 397         memset((void *)tmpdata, 0xff, PGPKT_DATA_SIZE);
 398
 399         if (!(word_en&BIT0)) {
 400                 tmpaddr = start_addr;
 401                 efuse_OneByteWrite(pAdapter, start_addr++, data[0]);
 402                 efuse_OneByteWrite(pAdapter, start_addr++, data[1]);
 403
 404                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[0]);
 405                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[1]);
 406                 if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
 407                         badworden &= (~BIT0);
 408         }
 409         if (!(word_en&BIT1)) {
 410                 tmpaddr = start_addr;
 411                 efuse_OneByteWrite(pAdapter, start_addr++, data[2]);
 412                 efuse_OneByteWrite(pAdapter, start_addr++, data[3]);
 413
 414                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[2]);
 415                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[3]);
 416                 if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
 417                         badworden &= (~BIT1);
 418         }
 419         if (!(word_en&BIT2)) {
 420                 tmpaddr = start_addr;
 421                 efuse_OneByteWrite(pAdapter, start_addr++, data[4]);
 422                 efuse_OneByteWrite(pAdapter, start_addr++, data[5]);
 423
 424                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[4]);
 425                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[5]);
 426                 if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
 427                         badworden &= (~BIT2);
 428         }
 429         if (!(word_en&BIT3)) {
 430                 tmpaddr = start_addr;
 431                 efuse_OneByteWrite(pAdapter, start_addr++, data[6]);
 432                 efuse_OneByteWrite(pAdapter, start_addr++, data[7]);
 433
 434                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[6]);
 435                 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[7]);
 436                 if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
 437                         badworden &= (~BIT3);
 438         }
 439         return badworden;
 440 }
 441
 442 static u16 Efuse_GetCurrentSize(struct adapter *pAdapter)
 443 {
 444         int     bContinual = true;
 445         u16     efuse_addr = 0;
 446         u8 hoffset = 0, hworden = 0;
 447         u8 efuse_data, word_cnts = 0;
 448
 449         rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 450
 451         while (bContinual &&
 452                efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) &&
 453                AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 454                 if (efuse_data != 0xFF) {
 455                         if ((efuse_data&0x1F) == 0x0F) {                /* extended header */
 456                                 hoffset = efuse_data;
 457                                 efuse_addr++;
 458                                 efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 459                                 if ((efuse_data & 0x0F) == 0x0F) {
 460                                         efuse_addr++;
 461                                         continue;
 462                                 } else {
 463                                         hoffset = ((hoffset & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 464                                         hworden = efuse_data & 0x0F;
 465                                 }
 466                         } else {
 467                                 hoffset = (efuse_data>>4) & 0x0F;
 468                                 hworden =  efuse_data & 0x0F;
 469                         }
 470                         word_cnts = Efuse_CalculateWordCnts(hworden);
 471                         /* read next header */
 472                         efuse_addr = efuse_addr + (word_cnts*2)+1;
 473                 } else {
 474                         bContinual = false;
 475                 }
 476         }
 477
 478         rtw_hal_set_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 479
 480         return efuse_addr;
 481 }
 482
 483 int Efuse_PgPacketRead(struct adapter *pAdapter, u8 offset, u8 *data)
 484 {
 485         u8 ReadState = PG_STATE_HEADER;
 486         int     bContinual = true;
 487         int     bDataEmpty = true;
 488         u8 efuse_data, word_cnts = 0;
 489         u16     efuse_addr = 0;
 490         u8 hoffset = 0, hworden = 0;
 491         u8 tmpidx = 0;
 492         u8 tmpdata[8];
 493         u8 max_section = 0;
 494         u8 tmp_header = 0;
 495
 496         EFUSE_GetEfuseDefinition(pAdapter, EFUSE_WIFI, TYPE_EFUSE_MAX_SECTION, (void *)&max_section);
 497
 498         if (data == NULL)
 499                 return false;
 500         if (offset > max_section)
 501                 return false;
 502
 503         memset((void *)data, 0xff, sizeof(u8)*PGPKT_DATA_SIZE);
 504         memset((void *)tmpdata, 0xff, sizeof(u8)*PGPKT_DATA_SIZE);
 505
 506         /*  <Roger_TODO> Efuse has been pre-programmed dummy 5Bytes at the end of Efuse by CP. */
 507         /*  Skip dummy parts to prevent unexpected data read from Efuse. */
 508         /*  By pass right now. 2009.02.19. */
 509         while (bContinual && AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 510                 /*   Header Read ------------- */
 511                 if (ReadState & PG_STATE_HEADER) {
 512                         if (efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) && (efuse_data != 0xFF)) {
 513                                 if (EXT_HEADER(efuse_data)) {
 514                                         tmp_header = efuse_data;
 515                                         efuse_addr++;
 516                                         efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 517                                         if (!ALL_WORDS_DISABLED(efuse_data)) {
 518                                                 hoffset = ((tmp_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 519                                                 hworden = efuse_data & 0x0F;
 520                                         } else {
 521                                                 DBG_88E("Error, All words disabled\n");
 522                                                 efuse_addr++;
 523                                                 continue;
 524                                         }
 525                                 } else {
 526                                         hoffset = (efuse_data>>4) & 0x0F;
 527                                         hworden =  efuse_data & 0x0F;
 528                                 }
 529                                 word_cnts = Efuse_CalculateWordCnts(hworden);
 530                                 bDataEmpty = true;
 531
 532                                 if (hoffset == offset) {
 533                                         for (tmpidx = 0; tmpidx < word_cnts*2; tmpidx++) {
 534                                                 if (efuse_OneByteRead(pAdapter, efuse_addr+1+tmpidx, &efuse_data)) {
 535                                                         tmpdata[tmpidx] = efuse_data;
 536                                                         if (efuse_data != 0xff)
 537                                                                 bDataEmpty = false;
 538                                                 }
 539                                         }
 540                                         if (bDataEmpty == false) {
 541                                                 ReadState = PG_STATE_DATA;
 542                                         } else {/* read next header */
 543                                                 efuse_addr = efuse_addr + (word_cnts*2)+1;
 544                                                 ReadState = PG_STATE_HEADER;
 545                                         }
 546                                 } else {/* read next header */
 547                                         efuse_addr = efuse_addr + (word_cnts*2)+1;
 548                                         ReadState = PG_STATE_HEADER;
 549                                 }
 550                         } else {
 551                                 bContinual = false;
 552                         }
 553                 } else if (ReadState & PG_STATE_DATA) {
 554                 /*   Data section Read ------------- */
 555                         efuse_WordEnableDataRead(hworden, tmpdata, data);
 556                         efuse_addr = efuse_addr + (word_cnts*2)+1;
 557                         ReadState = PG_STATE_HEADER;
 558                 }
 559
 560         }
 561
 562         if ((data[0] == 0xff) && (data[1] == 0xff) && (data[2] == 0xff)  && (data[3] == 0xff) &&
 563             (data[4] == 0xff) && (data[5] == 0xff) && (data[6] == 0xff)  && (data[7] == 0xff))
 564                 return false;
 565         else
 566                 return true;
 567 }
 568
 569 static bool hal_EfuseFixHeaderProcess(struct adapter *pAdapter, u8 efuseType, struct pgpkt *pFixPkt, u16 *pAddr)
 570 {
 571         u8 originaldata[8], badworden = 0;
 572         u16     efuse_addr = *pAddr;
 573         u32     PgWriteSuccess = 0;
 574
 575         memset((void *)originaldata, 0xff, 8);
 576
 577         if (Efuse_PgPacketRead(pAdapter, pFixPkt->offset, originaldata)) {
 578                 /* check if data exist */
 579                 badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr+1, pFixPkt->word_en, originaldata);
 580
 581                 if (badworden != 0xf) { /*  write fail */
 582                         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pFixPkt->offset, badworden, originaldata);
 583
 584                         if (!PgWriteSuccess)
 585                                 return false;
 586                         else
 587                                 efuse_addr = Efuse_GetCurrentSize(pAdapter);
 588                 } else {
 589                         efuse_addr = efuse_addr + (pFixPkt->word_cnts*2) + 1;
 590                 }
 591         } else {
 592                 efuse_addr = efuse_addr + (pFixPkt->word_cnts*2) + 1;
 593         }
 594         *pAddr = efuse_addr;
 595         return true;
 596 }
 597
 598 static bool hal_EfusePgPacketWrite2ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 599 {
 600         bool bRet = false;
 601         u16     efuse_addr = *pAddr, efuse_max_available_len = 0;
 602         u8 pg_header = 0, tmp_header = 0, pg_header_temp = 0;
 603         u8 repeatcnt = 0;
 604
 605         EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_AVAILABLE_EFUSE_BYTES_BANK, (void *)&efuse_max_available_len);
 606
 607         while (efuse_addr < efuse_max_available_len) {
 608                 pg_header = ((pTargetPkt->offset & 0x07) << 5) | 0x0F;
 609                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 610                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 611
 612                 while (tmp_header == 0xFF) {
 613                         if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 614                                 return false;
 615
 616                         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 617                         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 618                 }
 619
 620                 /* to write ext_header */
 621                 if (tmp_header == pg_header) {
 622                         efuse_addr++;
 623                         pg_header_temp = pg_header;
 624                         pg_header = ((pTargetPkt->offset & 0x78) << 1) | pTargetPkt->word_en;
 625
 626                         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 627                         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 628
 629                         while (tmp_header == 0xFF) {
 630                                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 631                                         return false;
 632
 633                                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 634                                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 635                         }
 636
 637                         if ((tmp_header & 0x0F) == 0x0F) {      /* word_en PG fail */
 638                                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_) {
 639                                         return false;
 640                                 }
 641                                 efuse_addr++;
 642                                 continue;
 643                         } else if (pg_header != tmp_header) {   /* offset PG fail */
 644                                 struct pgpkt    fixPkt;
 645                                 fixPkt.offset = ((pg_header_temp & 0xE0) >> 5) | ((tmp_header & 0xF0) >> 1);
 646                                 fixPkt.word_en = tmp_header & 0x0F;
 647                                 fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 648                                 if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 649                                         return false;
 650                         } else {
 651                                 bRet = true;
 652                                 break;
 653                         }
 654                 } else if ((tmp_header & 0x1F) == 0x0F) {               /* wrong extended header */
 655                         efuse_addr += 2;
 656                         continue;
 657                 }
 658         }
 659
 660         *pAddr = efuse_addr;
 661         return bRet;
 662 }
 663
 664 static bool hal_EfusePgPacketWrite1ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 665 {
 666         bool bRet = false;
 667         u8 pg_header = 0, tmp_header = 0;
 668         u16     efuse_addr = *pAddr;
 669         u8 repeatcnt = 0;
 670
 671         pg_header = ((pTargetPkt->offset << 4) & 0xf0) | pTargetPkt->word_en;
 672
 673         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 674         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 675
 676         while (tmp_header == 0xFF) {
 677                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 678                         return false;
 679                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 680                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 681         }
 682
 683         if (pg_header == tmp_header) {
 684                 bRet = true;
 685         } else {
 686                 struct pgpkt    fixPkt;
 687                 fixPkt.offset = (tmp_header>>4) & 0x0F;
 688                 fixPkt.word_en = tmp_header & 0x0F;
 689                 fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 690                 if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 691                         return false;
 692         }
 693
 694         *pAddr = efuse_addr;
 695         return bRet;
 696 }
 697
 698 static bool hal_EfusePgPacketWriteData(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 699 {
 700         u16     efuse_addr = *pAddr;
 701         u8 badworden = 0;
 702         u32     PgWriteSuccess = 0;
 703
 704         badworden = 0x0f;
 705         badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr+1, pTargetPkt->word_en, pTargetPkt->data);
 706         if (badworden == 0x0F) {
 707                 /*  write ok */
 708                 return true;
 709         }
 710         /* reorganize other pg packet */
 711         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 712         if (!PgWriteSuccess)
 713                 return false;
 714         else
 715                 return true;
 716 }
 717
 718 static bool
 719 hal_EfusePgPacketWriteHeader(
 720                                 struct adapter *pAdapter,
 721                                 u8 efuseType,
 722                                 u16                             *pAddr,
 723                                 struct pgpkt *pTargetPkt)
 724 {
 725         bool bRet = false;
 726
 727         if (pTargetPkt->offset >= EFUSE_MAX_SECTION_BASE)
 728                 bRet = hal_EfusePgPacketWrite2ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 729         else
 730                 bRet = hal_EfusePgPacketWrite1ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 731
 732         return bRet;
 733 }
 734
 735 static bool wordEnMatched(struct pgpkt *pTargetPkt, struct pgpkt *pCurPkt,
 736                           u8 *pWden)
 737 {
 738         u8 match_word_en = 0x0F;        /*  default all words are disabled */
 739
 740         /*  check if the same words are enabled both target and current PG packet */
 741         if (((pTargetPkt->word_en & BIT0) == 0) &&
 742             ((pCurPkt->word_en & BIT0) == 0))
 743                 match_word_en &= ~BIT0;                         /*  enable word 0 */
 744         if (((pTargetPkt->word_en & BIT1) == 0) &&
 745             ((pCurPkt->word_en & BIT1) == 0))
 746                 match_word_en &= ~BIT1;                         /*  enable word 1 */
 747         if (((pTargetPkt->word_en & BIT2) == 0) &&
 748             ((pCurPkt->word_en & BIT2) == 0))
 749                 match_word_en &= ~BIT2;                         /*  enable word 2 */
 750         if (((pTargetPkt->word_en & BIT3) == 0) &&
 751             ((pCurPkt->word_en & BIT3) == 0))
 752                 match_word_en &= ~BIT3;                         /*  enable word 3 */
 753
 754         *pWden = match_word_en;
 755
 756         if (match_word_en != 0xf)
 757                 return true;
 758         else
 759                 return false;
 760 }
 761
 762 static bool hal_EfuseCheckIfDatafollowed(struct adapter *pAdapter, u8 word_cnts, u16 startAddr)
 763 {
 764         bool bRet = false;
 765         u8 i, efuse_data;
 766
 767         for (i = 0; i < (word_cnts*2); i++) {
 768                 if (efuse_OneByteRead(pAdapter, (startAddr+i), &efuse_data) && (efuse_data != 0xFF))
 769                         bRet = true;
 770         }
 771         return bRet;
 772 }
 773
 774 static bool hal_EfusePartialWriteCheck(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 775 {
 776         bool bRet = false;
 777         u8 i, efuse_data = 0, cur_header = 0;
 778         u8 matched_wden = 0, badworden = 0;
 779         u16     startAddr = 0, efuse_max_available_len = 0, efuse_max = 0;
 780         struct pgpkt curPkt;
 781
 782         EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_AVAILABLE_EFUSE_BYTES_BANK, (void *)&efuse_max_available_len);
 783         EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_EFUSE_REAL_CONTENT_LEN, (void *)&efuse_max);
 784
 785         rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&startAddr);
 786         startAddr %= EFUSE_REAL_CONTENT_LEN;
 787
 788         while (1) {
 789                 if (startAddr >= efuse_max_available_len) {
 790                         bRet = false;
 791                         break;
 792                 }
 793
 794                 if (efuse_OneByteRead(pAdapter, startAddr, &efuse_data) && (efuse_data != 0xFF)) {
 795                         if (EXT_HEADER(efuse_data)) {
 796                                 cur_header = efuse_data;
 797                                 startAddr++;
 798                                 efuse_OneByteRead(pAdapter, startAddr, &efuse_data);
 799                                 if (ALL_WORDS_DISABLED(efuse_data)) {
 800                                         bRet = false;
 801                                         break;
 802                                 } else {
 803                                         curPkt.offset = ((cur_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 804                                         curPkt.word_en = efuse_data & 0x0F;
 805                                 }
 806                         } else {
 807                                 cur_header  =  efuse_data;
 808                                 curPkt.offset = (cur_header>>4) & 0x0F;
 809                                 curPkt.word_en = cur_header & 0x0F;
 810                         }
 811
 812                         curPkt.word_cnts = Efuse_CalculateWordCnts(curPkt.word_en);
 813                         /*  if same header is found but no data followed */
 814                         /*  write some part of data followed by the header. */
 815                         if ((curPkt.offset == pTargetPkt->offset) &&
 816                             (!hal_EfuseCheckIfDatafollowed(pAdapter, curPkt.word_cnts, startAddr+1)) &&
 817                             wordEnMatched(pTargetPkt, &curPkt, &matched_wden)) {
 818                                 /*  Here to write partial data */
 819                                 badworden = Efuse_WordEnableDataWrite(pAdapter, startAddr+1, matched_wden, pTargetPkt->data);
 820                                 if (badworden != 0x0F) {
 821                                         u32     PgWriteSuccess = 0;
 822                                         /*  if write fail on some words, write these bad words again */
 823
 824                                         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 825
 826                                         if (!PgWriteSuccess) {
 827                                                 bRet = false;   /*  write fail, return */
 828                                                 break;
 829                                         }
 830                                 }
 831                                 /*  partial write ok, update the target packet for later use */
 832                                 for (i = 0; i < 4; i++) {
 833                                         if ((matched_wden & (0x1<<i)) == 0)     /*  this word has been written */
 834                                                 pTargetPkt->word_en |= (0x1<<i);        /*  disable the word */
 835                                 }
 836                                 pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 837                         }
 838                         /*  read from next header */
 839                         startAddr = startAddr + (curPkt.word_cnts*2) + 1;
 840                 } else {
 841                         /*  not used header, 0xff */
 842                         *pAddr = startAddr;
 843                         bRet = true;
 844                         break;
 845                 }
 846         }
 847         return bRet;
 848 }
 849
 850 static bool
 851 hal_EfusePgCheckAvailableAddr(
 852                 struct adapter *pAdapter,
 853                 u8 efuseType
 854         )
 855 {
 856         u16     efuse_max_available_len = 0;
 857
 858         /* Change to check TYPE_EFUSE_MAP_LEN , because 8188E raw 256, logic map over 256. */
 859         EFUSE_GetEfuseDefinition(pAdapter, EFUSE_WIFI, TYPE_EFUSE_MAP_LEN, (void *)&efuse_max_available_len);
 860
 861         if (Efuse_GetCurrentSize(pAdapter) >= efuse_max_available_len)
 862                 return false;
 863         return true;
 864 }
 865
 866 static void hal_EfuseConstructPGPkt(u8 offset, u8 word_en, u8 *pData, struct pgpkt *pTargetPkt)
 867 {
 868         memset((void *)pTargetPkt->data, 0xFF, sizeof(u8)*8);
 869         pTargetPkt->offset = offset;
 870         pTargetPkt->word_en = word_en;
 871         efuse_WordEnableDataRead(word_en, pData, pTargetPkt->data);
 872         pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 873 }
 874
 875 bool Efuse_PgPacketWrite(struct adapter *pAdapter, u8 offset, u8 word_en, u8 *pData)
 876 {
 877         struct pgpkt    targetPkt;
 878         u16                     startAddr = 0;
 879         u8 efuseType = EFUSE_WIFI;
 880
 881         if (!hal_EfusePgCheckAvailableAddr(pAdapter, efuseType))
 882                 return false;
 883
 884         hal_EfuseConstructPGPkt(offset, word_en, pData, &targetPkt);
 885
 886         if (!hal_EfusePartialWriteCheck(pAdapter, efuseType, &startAddr, &targetPkt))
 887                 return false;
 888
 889         if (!hal_EfusePgPacketWriteHeader(pAdapter, efuseType, &startAddr, &targetPkt))
 890                 return false;
 891
 892         if (!hal_EfusePgPacketWriteData(pAdapter, efuseType, &startAddr, &targetPkt))
 893                 return false;
 894
 895         return true;
 896 }
 897
 898 u8 Efuse_CalculateWordCnts(u8 word_en)
 899 {
 900         u8 word_cnts = 0;
 901         if (!(word_en & BIT(0)))
 902                 word_cnts++; /*  0 : write enable */
 903         if (!(word_en & BIT(1)))
 904                 word_cnts++;
 905         if (!(word_en & BIT(2)))
 906                 word_cnts++;
 907         if (!(word_en & BIT(3)))
 908                 word_cnts++;
 909         return word_cnts;
 910 }
 911
 912 u8 efuse_OneByteRead(struct adapter *pAdapter, u16 addr, u8 *data)
 913 {
 914         u8 tmpidx = 0;
 915         u8 result;
 916
 917         usb_write8(pAdapter, EFUSE_CTRL+1, (u8)(addr & 0xff));
 918         usb_write8(pAdapter, EFUSE_CTRL+2, ((u8)((addr>>8) & 0x03)) |
 919                    (usb_read8(pAdapter, EFUSE_CTRL+2) & 0xFC));
 920
 921         usb_write8(pAdapter, EFUSE_CTRL+3,  0x72);/* read cmd */
 922
 923         while (!(0x80 & usb_read8(pAdapter, EFUSE_CTRL+3)) && (tmpidx < 100))
 924                 tmpidx++;
 925         if (tmpidx < 100) {
 926                 *data = usb_read8(pAdapter, EFUSE_CTRL);
 927                 result = true;
 928         } else {
 929                 *data = 0xff;
 930                 result = false;
 931         }
 932         return result;
 933 }
 934
 935 u8 efuse_OneByteWrite(struct adapter *pAdapter, u16 addr, u8 data)
 936 {
 937         u8 tmpidx = 0;
 938         u8 result;
 939
 940         usb_write8(pAdapter, EFUSE_CTRL+1, (u8)(addr&0xff));
 941         usb_write8(pAdapter, EFUSE_CTRL+2,
 942                    (usb_read8(pAdapter, EFUSE_CTRL+2) & 0xFC) |
 943                    (u8)((addr>>8) & 0x03));
 944         usb_write8(pAdapter, EFUSE_CTRL, data);/* data */
 945
 946         usb_write8(pAdapter, EFUSE_CTRL+3, 0xF2);/* write cmd */
 947
 948         while ((0x80 &  usb_read8(pAdapter, EFUSE_CTRL+3)) && (tmpidx < 100))
 949                 tmpidx++;
 950
 951         if (tmpidx < 100)
 952                 result = true;
 953         else
 954                 result = false;
 955
 956         return result;
 957 }
 958
 959 /*
 960  * Overview:   Read allowed word in current efuse section data.
 961  */
 962 void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata)
 963 {
 964         if (!(word_en&BIT(0))) {
 965                 targetdata[0] = sourdata[0];
 966                 targetdata[1] = sourdata[1];
 967         }
 968         if (!(word_en&BIT(1))) {
 969                 targetdata[2] = sourdata[2];
 970                 targetdata[3] = sourdata[3];
 971         }
 972         if (!(word_en&BIT(2))) {
 973                 targetdata[4] = sourdata[4];
 974                 targetdata[5] = sourdata[5];
 975         }
 976         if (!(word_en&BIT(3))) {
 977                 targetdata[6] = sourdata[6];
 978                 targetdata[7] = sourdata[7];
 979         }
 980 }
 981
 982 /*
 983  * Overview:    Read All Efuse content
 984  */
 985 static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 efuseType, u8 *Efuse)
 986 {
 987         u16 mapLen = 0;
 988
 989         Efuse_PowerSwitch(pAdapter, false, true);
 990
 991         EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_EFUSE_MAP_LEN, (void *)&mapLen);
 992
 993         efuse_ReadEFuse(pAdapter, efuseType, 0, mapLen, Efuse);
 994
 995         Efuse_PowerSwitch(pAdapter, false, false);
 996 }
 997
 998 /*
 999  * Overview:    Transfer current EFUSE content to shadow init and modify map.
1000  */
1001 void EFUSE_ShadowMapUpdate(
1002         struct adapter *pAdapter,
1003         u8 efuseType)
1004 {
1005         struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
1006         u16 mapLen = 0;
1007
1008         EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_EFUSE_MAP_LEN, (void *)&mapLen);
1009
1010         if (pEEPROM->bautoload_fail_flag)
1011                 memset(pEEPROM->efuse_eeprom_data, 0xFF, mapLen);
1012         else
1013                 Efuse_ReadAllMap(pAdapter, efuseType, pEEPROM->efuse_eeprom_data);
1014 }