drivers/staging/rtl8188eu/core/rtw_efuse.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   5  *
   6  ******************************************************************************/
   7 #define _RTW_EFUSE_C_
   8
   9 #include <osdep_service.h>
  10 #include <drv_types.h>
  11 #include <rtw_efuse.h>
  12 #include <usb_ops_linux.h>
  13 #include <rtl8188e_hal.h>
  14 #include <rtw_iol.h>
  15
  16 #define REG_EFUSE_CTRL          0x0030
  17 #define EFUSE_CTRL                      REG_EFUSE_CTRL          /*  E-Fuse Control. */
  18
  19 enum{
  20                 VOLTAGE_V25                                             = 0x03,
  21                 LDOE25_SHIFT                                            = 28,
  22         };
  23
  24 /*
  25  * When we want to enable write operation, we should change to pwr on state.
  26  * When we stop write, we should switch to 500k mode and disable LDO 2.5V.
  27  */
  28 static void efuse_power_switch(struct adapter *pAdapter, u8 write, u8 pwrstate)
  29 {
  30         u8 tempval;
  31         u16 tmpv16;
  32
  33         if (pwrstate) {
  34                 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);
  35
  36                 /*  1.2V Power: From VDDON with Power Cut(0x0000h[15]), default valid */
  37                 tmpv16 = usb_read16(pAdapter, REG_SYS_ISO_CTRL);
  38                 if (!(tmpv16 & PWC_EV12V)) {
  39                         tmpv16 |= PWC_EV12V;
  40                         usb_write16(pAdapter, REG_SYS_ISO_CTRL, tmpv16);
  41                 }
  42                 /*  Reset: 0x0000h[28], default valid */
  43                 tmpv16 =  usb_read16(pAdapter, REG_SYS_FUNC_EN);
  44                 if (!(tmpv16 & FEN_ELDR)) {
  45                         tmpv16 |= FEN_ELDR;
  46                         usb_write16(pAdapter, REG_SYS_FUNC_EN, tmpv16);
  47                 }
  48
  49                 /*  Clock: Gated(0x0008h[5]) 8M(0x0008h[1]) clock from ANA, default valid */
  50                 tmpv16 = usb_read16(pAdapter, REG_SYS_CLKR);
  51                 if ((!(tmpv16 & LOADER_CLK_EN))  || (!(tmpv16 & ANA8M))) {
  52                         tmpv16 |= (LOADER_CLK_EN | ANA8M);
  53                         usb_write16(pAdapter, REG_SYS_CLKR, tmpv16);
  54                 }
  55
  56                 if (write) {
  57                         /*  Enable LDO 2.5V before read/write action */
  58                         tempval = usb_read8(pAdapter, EFUSE_TEST + 3);
  59                         tempval &= 0x0F;
  60                         tempval |= (VOLTAGE_V25 << 4);
  61                         usb_write8(pAdapter, EFUSE_TEST + 3, (tempval | 0x80));
  62                 }
  63         } else {
  64                 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);
  65
  66                 if (write) {
  67                         /*  Disable LDO 2.5V after read/write action */
  68                         tempval = usb_read8(pAdapter, EFUSE_TEST + 3);
  69                         usb_write8(pAdapter, EFUSE_TEST + 3, (tempval & 0x7F));
  70                 }
  71         }
  72 }
  73
  74 static void
  75 efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
  76 {
  77         u8 *efuseTbl = NULL;
  78         u8 rtemp8;
  79         u16     eFuse_Addr = 0;
  80         u8 offset, wren;
  81         u16     i, j;
  82         u16     **eFuseWord = NULL;
  83         u16     efuse_utilized = 0;
  84         u8 u1temp = 0;
  85         void **tmp = NULL;
  86
  87         efuseTbl = kzalloc(EFUSE_MAP_LEN_88E, GFP_KERNEL);
  88         if (!efuseTbl)
  89                 return;
  90
  91         tmp = kcalloc(EFUSE_MAX_SECTION_88E,
  92                       sizeof(void *) + EFUSE_MAX_WORD_UNIT * sizeof(u16),
  93                       GFP_KERNEL);
  94         if (!tmp) {
  95                 DBG_88E("%s: alloc eFuseWord fail!\n", __func__);
  96                 goto eFuseWord_failed;
  97         }
  98         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++)
  99                 tmp[i] = ((char *)(tmp + EFUSE_MAX_SECTION_88E)) + i * EFUSE_MAX_WORD_UNIT * sizeof(u16);
 100         eFuseWord = (u16 **)tmp;
 101
 102         /*  0. Refresh efuse init map as all oxFF. */
 103         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++)
 104                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 105                         eFuseWord[i][j] = 0xFFFF;
 106
 107         /*  */
 108         /*  1. Read the first byte to check if efuse is empty!!! */
 109         /*  */
 110         /*  */
 111         rtemp8 = *(phymap + eFuse_Addr);
 112         if (rtemp8 != 0xFF) {
 113                 efuse_utilized++;
 114                 eFuse_Addr++;
 115         } else {
 116                 DBG_88E("EFUSE is empty efuse_Addr-%d efuse_data =%x\n", eFuse_Addr, rtemp8);
 117                 goto exit;
 118         }
 119
 120         /*  */
 121         /*  2. Read real efuse content. Filter PG header and every section data. */
 122         /*  */
 123         while ((rtemp8 != 0xFF) && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 124                 /*  Check PG header for section num. */
 125                 if ((rtemp8 & 0x1F) == 0x0F) {          /* extended header */
 126                         u1temp = (rtemp8 & 0xE0) >> 5;
 127                         rtemp8 = *(phymap + eFuse_Addr);
 128                         if ((rtemp8 & 0x0F) == 0x0F) {
 129                                 eFuse_Addr++;
 130                                 rtemp8 = *(phymap + eFuse_Addr);
 131
 132                                 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E))
 133                                         eFuse_Addr++;
 134                                 continue;
 135                         } else {
 136                                 offset = ((rtemp8 & 0xF0) >> 1) | u1temp;
 137                                 wren = rtemp8 & 0x0F;
 138                                 eFuse_Addr++;
 139                         }
 140                 } else {
 141                         offset = (rtemp8 >> 4) & 0x0f;
 142                         wren = rtemp8 & 0x0f;
 143                 }
 144
 145                 if (offset < EFUSE_MAX_SECTION_88E) {
 146                         /*  Get word enable value from PG header */
 147                         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 148                                 /*  Check word enable condition in the section */
 149                                 if (!(wren & 0x01)) {
 150                                         rtemp8 = *(phymap + eFuse_Addr);
 151                                         eFuse_Addr++;
 152                                         efuse_utilized++;
 153                                         eFuseWord[offset][i] = (rtemp8 & 0xff);
 154                                         if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
 155                                                 break;
 156                                         rtemp8 = *(phymap + eFuse_Addr);
 157                                         eFuse_Addr++;
 158                                         efuse_utilized++;
 159                                         eFuseWord[offset][i] |= (((u16)rtemp8 << 8) & 0xff00);
 160
 161                                         if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
 162                                                 break;
 163                                 }
 164                                 wren >>= 1;
 165                         }
 166                 }
 167                 /*  Read next PG header */
 168                 rtemp8 = *(phymap + eFuse_Addr);
 169
 170                 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 171                         efuse_utilized++;
 172                         eFuse_Addr++;
 173                 }
 174         }
 175
 176         /*  */
 177         /*  3. Collect 16 sections and 4 word unit into Efuse map. */
 178         /*  */
 179         for (i = 0; i < EFUSE_MAX_SECTION_88E; i++) {
 180                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 181                         efuseTbl[(i * 8) + (j * 2)] = (eFuseWord[i][j] & 0xff);
 182                         efuseTbl[(i * 8) + ((j * 2) + 1)] = ((eFuseWord[i][j] >> 8) & 0xff);
 183                 }
 184         }
 185
 186         /*  */
 187         /*  4. Copy from Efuse map to output pointer memory!!! */
 188         /*  */
 189         for (i = 0; i < _size_byte; i++)
 190                 pbuf[i] = efuseTbl[_offset + i];
 191
 192         /*  */
 193         /*  5. Calculate Efuse utilization. */
 194         /*  */
 195
 196 exit:
 197         kfree(eFuseWord);
 198
 199 eFuseWord_failed:
 200         kfree(efuseTbl);
 201 }
 202
 203 static void efuse_read_phymap_from_txpktbuf(
 204         struct adapter  *adapter,
 205         int bcnhead,    /* beacon head, where FW store len(2-byte) and efuse physical map. */
 206         u8 *content,    /* buffer to store efuse physical map */
 207         u16 *size       /* for efuse content: the max byte to read. will update to byte read */
 208         )
 209 {
 210         u16 dbg_addr = 0;
 211         unsigned long start = 0;
 212         u8 reg_0x143 = 0;
 213         u32 lo32 = 0, hi32 = 0;
 214         u16 len = 0, count = 0;
 215         int i = 0;
 216         u16 limit = *size;
 217
 218         u8 *pos = content;
 219
 220         if (bcnhead < 0) /* if not valid */
 221                 bcnhead = usb_read8(adapter, REG_TDECTRL + 1);
 222
 223         DBG_88E("%s bcnhead:%d\n", __func__, bcnhead);
 224
 225         usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
 226
 227         dbg_addr = bcnhead * 128 / 8; /* 8-bytes addressing */
 228
 229         while (1) {
 230                 usb_write16(adapter, REG_PKTBUF_DBG_ADDR, dbg_addr + i);
 231
 232                 usb_write8(adapter, REG_TXPKTBUF_DBG, 0);
 233                 start = jiffies;
 234                 while (!(reg_0x143 = usb_read8(adapter, REG_TXPKTBUF_DBG)) &&
 235                        jiffies_to_msecs(jiffies - start) < 1000) {
 236                         DBG_88E("%s polling reg_0x143:0x%02x, reg_0x106:0x%02x\n", __func__, reg_0x143, usb_read8(adapter, 0x106));
 237                         usleep_range(1000, 2000);
 238                 }
 239
 240                 lo32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_L);
 241                 hi32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_H);
 242
 243                 if (i == 0) {
 244                         u8 lenc[2];
 245                         u16 lenbak, aaabak;
 246                         u16 aaa;
 247
 248                         lenc[0] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L);
 249                         lenc[1] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L + 1);
 250
 251                         aaabak = le16_to_cpup((__le16 *)lenc);
 252                         lenbak = le16_to_cpu(*((__le16 *)lenc));
 253                         aaa = le16_to_cpup((__le16 *)&lo32);
 254                         len = le16_to_cpu(*((__le16 *)&lo32));
 255
 256                         limit = min_t(u16, len - 2, limit);
 257
 258                         DBG_88E("%s len:%u, lenbak:%u, aaa:%u, aaabak:%u\n", __func__, len, lenbak, aaa, aaabak);
 259
 260                         memcpy(pos, ((u8 *)&lo32) + 2, (limit >= count + 2) ? 2 : limit - count);
 261                         count += (limit >= count + 2) ? 2 : limit - count;
 262                         pos = content + count;
 263
 264                 } else {
 265                         memcpy(pos, ((u8 *)&lo32), (limit >= count + 4) ? 4 : limit - count);
 266                         count += (limit >= count + 4) ? 4 : limit - count;
 267                         pos = content + count;
 268                 }
 269
 270                 if (limit > count && len - 2 > count) {
 271                         memcpy(pos, (u8 *)&hi32, (limit >= count + 4) ? 4 : limit - count);
 272                         count += (limit >= count + 4) ? 4 : limit - count;
 273                         pos = content + count;
 274                 }
 275
 276                 if (limit <= count || len - 2 <= count)
 277                         break;
 278                 i++;
 279         }
 280         usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, DISABLE_TRXPKT_BUF_ACCESS);
 281         DBG_88E("%s read count:%u\n", __func__, count);
 282         *size = count;
 283 }
 284
 285 static s32 iol_read_efuse(struct adapter *padapter, u8 txpktbuf_bndy, u16 offset, u16 size_byte, u8 *logical_map)
 286 {
 287         s32 status = _FAIL;
 288         u8 physical_map[512];
 289         u16 size = 512;
 290
 291         usb_write8(padapter, REG_TDECTRL + 1, txpktbuf_bndy);
 292         memset(physical_map, 0xFF, 512);
 293         usb_write8(padapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
 294         status = iol_execute(padapter, CMD_READ_EFUSE_MAP);
 295         if (status == _SUCCESS)
 296                 efuse_read_phymap_from_txpktbuf(padapter, txpktbuf_bndy, physical_map, &size);
 297         efuse_phymap_to_logical(physical_map, offset, size_byte, logical_map);
 298         return status;
 299 }
 300
 301 void efuse_ReadEFuse(struct adapter *Adapter, u8 efuseType, u16 _offset, u16 _size_byte, u8 *pbuf)
 302 {
 303         if (rtw_iol_applied(Adapter)) {
 304                 rtw_hal_power_on(Adapter);
 305                 iol_mode_enable(Adapter, 1);
 306                 iol_read_efuse(Adapter, 0, _offset, _size_byte, pbuf);
 307                 iol_mode_enable(Adapter, 0);
 308         }
 309 }
 310
 311 u8 Efuse_WordEnableDataWrite(struct adapter *pAdapter, u16 efuse_addr, u8 word_en, u8 *data)
 312 {
 313         u16     tmpaddr = 0;
 314         u16     start_addr = efuse_addr;
 315         u8 badworden = 0x0F;
 316         u8 tmpdata[8];
 317
 318         memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
 319
 320         if (!(word_en & BIT(0))) {
 321                 tmpaddr = start_addr;
 322                 efuse_OneByteWrite(pAdapter, start_addr++, data[0]);
 323                 efuse_OneByteWrite(pAdapter, start_addr++, data[1]);
 324
 325                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[0]);
 326                 efuse_OneByteRead(pAdapter, tmpaddr + 1, &tmpdata[1]);
 327                 if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
 328                         badworden &= (~BIT(0));
 329         }
 330         if (!(word_en & BIT(1))) {
 331                 tmpaddr = start_addr;
 332                 efuse_OneByteWrite(pAdapter, start_addr++, data[2]);
 333                 efuse_OneByteWrite(pAdapter, start_addr++, data[3]);
 334
 335                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[2]);
 336                 efuse_OneByteRead(pAdapter, tmpaddr + 1, &tmpdata[3]);
 337                 if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
 338                         badworden &= (~BIT(1));
 339         }
 340         if (!(word_en & BIT(2))) {
 341                 tmpaddr = start_addr;
 342                 efuse_OneByteWrite(pAdapter, start_addr++, data[4]);
 343                 efuse_OneByteWrite(pAdapter, start_addr++, data[5]);
 344
 345                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[4]);
 346                 efuse_OneByteRead(pAdapter, tmpaddr + 1, &tmpdata[5]);
 347                 if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
 348                         badworden &= (~BIT(2));
 349         }
 350         if (!(word_en & BIT(3))) {
 351                 tmpaddr = start_addr;
 352                 efuse_OneByteWrite(pAdapter, start_addr++, data[6]);
 353                 efuse_OneByteWrite(pAdapter, start_addr++, data[7]);
 354
 355                 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[6]);
 356                 efuse_OneByteRead(pAdapter, tmpaddr + 1, &tmpdata[7]);
 357                 if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
 358                         badworden &= (~BIT(3));
 359         }
 360         return badworden;
 361 }
 362
 363 static u16 Efuse_GetCurrentSize(struct adapter *pAdapter)
 364 {
 365         u16     efuse_addr = 0;
 366         u8 hoffset = 0, hworden = 0;
 367         u8 efuse_data, word_cnts = 0;
 368
 369         rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 370
 371         while (efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) &&
 372                AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 373                 if (efuse_data == 0xFF)
 374                         break;
 375                 if ((efuse_data & 0x1F) == 0x0F) { /* extended header */
 376                         hoffset = efuse_data;
 377                         efuse_addr++;
 378                         efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 379                         if ((efuse_data & 0x0F) == 0x0F) {
 380                                 efuse_addr++;
 381                                 continue;
 382                         } else {
 383                                 hoffset = ((hoffset & 0xE0) >> 5) |
 384                                           ((efuse_data & 0xF0) >> 1);
 385                                 hworden = efuse_data & 0x0F;
 386                         }
 387                 } else {
 388                         hoffset = (efuse_data >> 4) & 0x0F;
 389                         hworden =  efuse_data & 0x0F;
 390                 }
 391                 word_cnts = Efuse_CalculateWordCnts(hworden);
 392                 /* read next header */
 393                 efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 394         }
 395
 396         rtw_hal_set_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 397
 398         return efuse_addr;
 399 }
 400
 401 int Efuse_PgPacketRead(struct adapter *pAdapter, u8 offset, u8 *data)
 402 {
 403         u8 ReadState = PG_STATE_HEADER;
 404         int     bDataEmpty = true;
 405         u8 efuse_data, word_cnts = 0;
 406         u16     efuse_addr = 0;
 407         u8 hoffset = 0, hworden = 0;
 408         u8 tmpidx = 0;
 409         u8 tmpdata[8];
 410         u8 tmp_header = 0;
 411
 412         if (!data)
 413                 return false;
 414         if (offset > EFUSE_MAX_SECTION_88E)
 415                 return false;
 416
 417         memset(data, 0xff, sizeof(u8) * PGPKT_DATA_SIZE);
 418         memset(tmpdata, 0xff, sizeof(u8) * PGPKT_DATA_SIZE);
 419
 420         /*  <Roger_TODO> Efuse has been pre-programmed dummy 5Bytes at the end of Efuse by CP. */
 421         /*  Skip dummy parts to prevent unexpected data read from Efuse. */
 422         /*  By pass right now. 2009.02.19. */
 423         while (AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 424                 /*   Header Read ------------- */
 425                 if (ReadState & PG_STATE_HEADER) {
 426                         if (efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) && (efuse_data != 0xFF)) {
 427                                 if (EXT_HEADER(efuse_data)) {
 428                                         tmp_header = efuse_data;
 429                                         efuse_addr++;
 430                                         efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 431                                         if (!ALL_WORDS_DISABLED(efuse_data)) {
 432                                                 hoffset = ((tmp_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 433                                                 hworden = efuse_data & 0x0F;
 434                                         } else {
 435                                                 DBG_88E("Error, All words disabled\n");
 436                                                 efuse_addr++;
 437                                                 continue;
 438                                         }
 439                                 } else {
 440                                         hoffset = (efuse_data >> 4) & 0x0F;
 441                                         hworden =  efuse_data & 0x0F;
 442                                 }
 443                                 word_cnts = Efuse_CalculateWordCnts(hworden);
 444                                 bDataEmpty = true;
 445
 446                                 if (hoffset == offset) {
 447                                         for (tmpidx = 0; tmpidx < word_cnts * 2; tmpidx++) {
 448                                                 if (efuse_OneByteRead(pAdapter, efuse_addr + 1 + tmpidx, &efuse_data)) {
 449                                                         tmpdata[tmpidx] = efuse_data;
 450                                                         if (efuse_data != 0xff)
 451                                                                 bDataEmpty = false;
 452                                                 }
 453                                         }
 454                                         if (!bDataEmpty) {
 455                                                 ReadState = PG_STATE_DATA;
 456                                         } else {/* read next header */
 457                                                 efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 458                                                 ReadState = PG_STATE_HEADER;
 459                                         }
 460                                 } else {/* read next header */
 461                                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 462                                         ReadState = PG_STATE_HEADER;
 463                                 }
 464                         } else {
 465                                 break;
 466                         }
 467                 } else if (ReadState & PG_STATE_DATA) {
 468                         /*   Data section Read ------------- */
 469                         efuse_WordEnableDataRead(hworden, tmpdata, data);
 470                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 471                         ReadState = PG_STATE_HEADER;
 472                 }
 473         }
 474
 475         if ((data[0] == 0xff) && (data[1] == 0xff) && (data[2] == 0xff)  && (data[3] == 0xff) &&
 476             (data[4] == 0xff) && (data[5] == 0xff) && (data[6] == 0xff)  && (data[7] == 0xff))
 477                 return false;
 478         else
 479                 return true;
 480 }
 481
 482 static bool hal_EfuseFixHeaderProcess(struct adapter *pAdapter, u8 efuseType, struct pgpkt *pFixPkt, u16 *pAddr)
 483 {
 484         u8 originaldata[8], badworden = 0;
 485         u16     efuse_addr = *pAddr;
 486         u32     PgWriteSuccess = 0;
 487
 488         memset(originaldata, 0xff, 8);
 489
 490         if (Efuse_PgPacketRead(pAdapter, pFixPkt->offset, originaldata)) {
 491                 /* check if data exist */
 492                 badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr + 1, pFixPkt->word_en, originaldata);
 493
 494                 if (badworden != 0xf) { /*  write fail */
 495                         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pFixPkt->offset, badworden, originaldata);
 496
 497                         if (!PgWriteSuccess)
 498                                 return false;
 499
 500                         efuse_addr = Efuse_GetCurrentSize(pAdapter);
 501                 } else {
 502                         efuse_addr = efuse_addr + (pFixPkt->word_cnts * 2) + 1;
 503                 }
 504         } else {
 505                 efuse_addr = efuse_addr + (pFixPkt->word_cnts * 2) + 1;
 506         }
 507         *pAddr = efuse_addr;
 508         return true;
 509 }
 510
 511 static bool hal_EfusePgPacketWrite2ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 512 {
 513         bool ret = false;
 514         u16 efuse_addr = *pAddr;
 515         u16 efuse_max_available_len =
 516                 EFUSE_REAL_CONTENT_LEN_88E - EFUSE_OOB_PROTECT_BYTES_88E;
 517         u8 pg_header = 0, tmp_header = 0, pg_header_temp = 0;
 518         u8 repeatcnt = 0;
 519
 520         while (efuse_addr < efuse_max_available_len) {
 521                 pg_header = ((pTargetPkt->offset & 0x07) << 5) | 0x0F;
 522                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 523                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 524
 525                 while (tmp_header == 0xFF) {
 526                         if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 527                                 return false;
 528
 529                         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 530                         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 531                 }
 532
 533                 /* to write ext_header */
 534                 if (tmp_header == pg_header) {
 535                         efuse_addr++;
 536                         pg_header_temp = pg_header;
 537                         pg_header = ((pTargetPkt->offset & 0x78) << 1) | pTargetPkt->word_en;
 538
 539                         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 540                         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 541
 542                         while (tmp_header == 0xFF) {
 543                                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 544                                         return false;
 545
 546                                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 547                                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 548                         }
 549
 550                         if ((tmp_header & 0x0F) == 0x0F) {      /* word_en PG fail */
 551                                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 552                                         return false;
 553
 554                                 efuse_addr++;
 555                                 continue;
 556                         } else if (pg_header != tmp_header) {   /* offset PG fail */
 557                                 struct pgpkt    fixPkt;
 558
 559                                 fixPkt.offset = ((pg_header_temp & 0xE0) >> 5) | ((tmp_header & 0xF0) >> 1);
 560                                 fixPkt.word_en = tmp_header & 0x0F;
 561                                 fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 562                                 if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 563                                         return false;
 564                         } else {
 565                                 ret = true;
 566                                 break;
 567                         }
 568                 } else if ((tmp_header & 0x1F) == 0x0F) {               /* wrong extended header */
 569                         efuse_addr += 2;
 570                         continue;
 571                 }
 572         }
 573
 574         *pAddr = efuse_addr;
 575         return ret;
 576 }
 577
 578 static bool hal_EfusePgPacketWrite1ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 579 {
 580         bool ret = false;
 581         u8 pg_header = 0, tmp_header = 0;
 582         u16     efuse_addr = *pAddr;
 583         u8 repeatcnt = 0;
 584
 585         pg_header = ((pTargetPkt->offset << 4) & 0xf0) | pTargetPkt->word_en;
 586
 587         efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 588         efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 589
 590         while (tmp_header == 0xFF) {
 591                 if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 592                         return false;
 593                 efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 594                 efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 595         }
 596
 597         if (pg_header == tmp_header) {
 598                 ret = true;
 599         } else {
 600                 struct pgpkt    fixPkt;
 601
 602                 fixPkt.offset = (tmp_header >> 4) & 0x0F;
 603                 fixPkt.word_en = tmp_header & 0x0F;
 604                 fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 605                 if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 606                         return false;
 607         }
 608
 609         *pAddr = efuse_addr;
 610         return ret;
 611 }
 612
 613 static bool hal_EfusePgPacketWriteData(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 614 {
 615         u16     efuse_addr = *pAddr;
 616         u8 badworden;
 617         u32     PgWriteSuccess = 0;
 618
 619         badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr + 1, pTargetPkt->word_en, pTargetPkt->data);
 620         if (badworden == 0x0F) {
 621                 /*  write ok */
 622                 return true;
 623         }
 624         /* reorganize other pg packet */
 625         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 626         if (!PgWriteSuccess)
 627                 return false;
 628         else
 629                 return true;
 630 }
 631
 632 static bool
 633 hal_EfusePgPacketWriteHeader(
 634                                 struct adapter *pAdapter,
 635                                 u8 efuseType,
 636                                 u16                             *pAddr,
 637                                 struct pgpkt *pTargetPkt)
 638 {
 639         bool ret = false;
 640
 641         if (pTargetPkt->offset >= EFUSE_MAX_SECTION_BASE)
 642                 ret = hal_EfusePgPacketWrite2ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 643         else
 644                 ret = hal_EfusePgPacketWrite1ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 645
 646         return ret;
 647 }
 648
 649 static bool wordEnMatched(struct pgpkt *pTargetPkt, struct pgpkt *pCurPkt,
 650                           u8 *pWden)
 651 {
 652         u8 match_word_en = 0x0F;        /*  default all words are disabled */
 653
 654         /*  check if the same words are enabled both target and current PG packet */
 655         if (((pTargetPkt->word_en & BIT(0)) == 0) &&
 656             ((pCurPkt->word_en & BIT(0)) == 0))
 657                 match_word_en &= ~BIT(0);                               /*  enable word 0 */
 658         if (((pTargetPkt->word_en & BIT(1)) == 0) &&
 659             ((pCurPkt->word_en & BIT(1)) == 0))
 660                 match_word_en &= ~BIT(1);                               /*  enable word 1 */
 661         if (((pTargetPkt->word_en & BIT(2)) == 0) &&
 662             ((pCurPkt->word_en & BIT(2)) == 0))
 663                 match_word_en &= ~BIT(2);                               /*  enable word 2 */
 664         if (((pTargetPkt->word_en & BIT(3)) == 0) &&
 665             ((pCurPkt->word_en & BIT(3)) == 0))
 666                 match_word_en &= ~BIT(3);                               /*  enable word 3 */
 667
 668         *pWden = match_word_en;
 669
 670         if (match_word_en != 0xf)
 671                 return true;
 672         else
 673                 return false;
 674 }
 675
 676 static bool hal_EfuseCheckIfDatafollowed(struct adapter *pAdapter, u8 word_cnts, u16 startAddr)
 677 {
 678         bool ret = false;
 679         u8 i, efuse_data;
 680
 681         for (i = 0; i < (word_cnts * 2); i++) {
 682                 if (efuse_OneByteRead(pAdapter, (startAddr + i), &efuse_data) && (efuse_data != 0xFF))
 683                         ret = true;
 684         }
 685         return ret;
 686 }
 687
 688 static bool hal_EfusePartialWriteCheck(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 689 {
 690         bool ret = false;
 691         u8 i, efuse_data = 0, cur_header = 0;
 692         u8 matched_wden = 0, badworden = 0;
 693         u16 startAddr = 0;
 694         u16 efuse_max_available_len =
 695                 EFUSE_REAL_CONTENT_LEN_88E - EFUSE_OOB_PROTECT_BYTES_88E;
 696         struct pgpkt curPkt;
 697
 698         rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&startAddr);
 699         startAddr %= EFUSE_REAL_CONTENT_LEN;
 700
 701         while (1) {
 702                 if (startAddr >= efuse_max_available_len) {
 703                         ret = false;
 704                         break;
 705                 }
 706
 707                 if (efuse_OneByteRead(pAdapter, startAddr, &efuse_data) && (efuse_data != 0xFF)) {
 708                         if (EXT_HEADER(efuse_data)) {
 709                                 cur_header = efuse_data;
 710                                 startAddr++;
 711                                 efuse_OneByteRead(pAdapter, startAddr, &efuse_data);
 712                                 if (ALL_WORDS_DISABLED(efuse_data)) {
 713                                         ret = false;
 714                                         break;
 715                                 }
 716                                 curPkt.offset = ((cur_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 717                                 curPkt.word_en = efuse_data & 0x0F;
 718                         } else {
 719                                 cur_header  =  efuse_data;
 720                                 curPkt.offset = (cur_header >> 4) & 0x0F;
 721                                 curPkt.word_en = cur_header & 0x0F;
 722                         }
 723
 724                         curPkt.word_cnts = Efuse_CalculateWordCnts(curPkt.word_en);
 725                         /*  if same header is found but no data followed */
 726                         /*  write some part of data followed by the header. */
 727                         if ((curPkt.offset == pTargetPkt->offset) &&
 728                             (!hal_EfuseCheckIfDatafollowed(pAdapter, curPkt.word_cnts, startAddr + 1)) &&
 729                             wordEnMatched(pTargetPkt, &curPkt, &matched_wden)) {
 730                                 /*  Here to write partial data */
 731                                 badworden = Efuse_WordEnableDataWrite(pAdapter, startAddr + 1, matched_wden, pTargetPkt->data);
 732                                 if (badworden != 0x0F) {
 733                                         u32     PgWriteSuccess = 0;
 734                                         /*  if write fail on some words, write these bad words again */
 735
 736                                         PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 737
 738                                         if (!PgWriteSuccess) {
 739                                                 ret = false;    /*  write fail, return */
 740                                                 break;
 741                                         }
 742                                 }
 743                                 /*  partial write ok, update the target packet for later use */
 744                                 for (i = 0; i < 4; i++) {
 745                                         if ((matched_wden & (0x1 << i)) == 0)   /*  this word has been written */
 746                                                 pTargetPkt->word_en |= (0x1 << i);      /*  disable the word */
 747                                 }
 748                                 pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 749                         }
 750                         /*  read from next header */
 751                         startAddr = startAddr + (curPkt.word_cnts * 2) + 1;
 752                 } else {
 753                         /*  not used header, 0xff */
 754                         *pAddr = startAddr;
 755                         ret = true;
 756                         break;
 757                 }
 758         }
 759         return ret;
 760 }
 761
 762 static void hal_EfuseConstructPGPkt(u8 offset, u8 word_en, u8 *pData, struct pgpkt *pTargetPkt)
 763 {
 764         memset((void *)pTargetPkt->data, 0xFF, sizeof(u8) * 8);
 765         pTargetPkt->offset = offset;
 766         pTargetPkt->word_en = word_en;
 767         efuse_WordEnableDataRead(word_en, pData, pTargetPkt->data);
 768         pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 769 }
 770
 771 bool Efuse_PgPacketWrite(struct adapter *pAdapter, u8 offset, u8 word_en, u8 *pData)
 772 {
 773         struct pgpkt    targetPkt;
 774         u16                     startAddr = 0;
 775         u8 efuseType = EFUSE_WIFI;
 776
 777         if (Efuse_GetCurrentSize(pAdapter) >= EFUSE_MAP_LEN_88E)
 778                 return false;
 779
 780         hal_EfuseConstructPGPkt(offset, word_en, pData, &targetPkt);
 781
 782         if (!hal_EfusePartialWriteCheck(pAdapter, efuseType, &startAddr, &targetPkt))
 783                 return false;
 784
 785         if (!hal_EfusePgPacketWriteHeader(pAdapter, efuseType, &startAddr, &targetPkt))
 786                 return false;
 787
 788         if (!hal_EfusePgPacketWriteData(pAdapter, efuseType, &startAddr, &targetPkt))
 789                 return false;
 790
 791         return true;
 792 }
 793
 794 u8 Efuse_CalculateWordCnts(u8 word_en)
 795 {
 796         u8 word_cnts = 0;
 797
 798         if (!(word_en & BIT(0)))
 799                 word_cnts++; /*  0 : write enable */
 800         if (!(word_en & BIT(1)))
 801                 word_cnts++;
 802         if (!(word_en & BIT(2)))
 803                 word_cnts++;
 804         if (!(word_en & BIT(3)))
 805                 word_cnts++;
 806         return word_cnts;
 807 }
 808
 809 u8 efuse_OneByteRead(struct adapter *pAdapter, u16 addr, u8 *data)
 810 {
 811         u8 tmpidx = 0;
 812         u8 result;
 813
 814         usb_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
 815         usb_write8(pAdapter, EFUSE_CTRL + 2, ((u8)((addr >> 8) & 0x03)) |
 816                    (usb_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC));
 817
 818         usb_write8(pAdapter, EFUSE_CTRL + 3,  0x72);/* read cmd */
 819
 820         while (!(0x80 & usb_read8(pAdapter, EFUSE_CTRL + 3)) && (tmpidx < 100))
 821                 tmpidx++;
 822         if (tmpidx < 100) {
 823                 *data = usb_read8(pAdapter, EFUSE_CTRL);
 824                 result = true;
 825         } else {
 826                 *data = 0xff;
 827                 result = false;
 828         }
 829         return result;
 830 }
 831
 832 u8 efuse_OneByteWrite(struct adapter *pAdapter, u16 addr, u8 data)
 833 {
 834         u8 tmpidx = 0;
 835         u8 result;
 836
 837         usb_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
 838         usb_write8(pAdapter, EFUSE_CTRL + 2,
 839                    (usb_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC) |
 840                    (u8)((addr >> 8) & 0x03));
 841         usb_write8(pAdapter, EFUSE_CTRL, data);/* data */
 842
 843         usb_write8(pAdapter, EFUSE_CTRL + 3, 0xF2);/* write cmd */
 844
 845         while ((0x80 &  usb_read8(pAdapter, EFUSE_CTRL + 3)) && (tmpidx < 100))
 846                 tmpidx++;
 847
 848         if (tmpidx < 100)
 849                 result = true;
 850         else
 851                 result = false;
 852
 853         return result;
 854 }
 855
 856 /* Read allowed word in current efuse section data. */
 857 void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata)
 858 {
 859         if (!(word_en & BIT(0))) {
 860                 targetdata[0] = sourdata[0];
 861                 targetdata[1] = sourdata[1];
 862         }
 863         if (!(word_en & BIT(1))) {
 864                 targetdata[2] = sourdata[2];
 865                 targetdata[3] = sourdata[3];
 866         }
 867         if (!(word_en & BIT(2))) {
 868                 targetdata[4] = sourdata[4];
 869                 targetdata[5] = sourdata[5];
 870         }
 871         if (!(word_en & BIT(3))) {
 872                 targetdata[6] = sourdata[6];
 873                 targetdata[7] = sourdata[7];
 874         }
 875 }
 876
 877 /* Read All Efuse content */
 878 static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 efuseType, u8 *Efuse)
 879 {
 880         efuse_power_switch(pAdapter, false, true);
 881
 882         efuse_ReadEFuse(pAdapter, efuseType, 0, EFUSE_MAP_LEN_88E, Efuse);
 883
 884         efuse_power_switch(pAdapter, false, false);
 885 }
 886
 887 /* Transfer current EFUSE content to shadow init and modify map. */
 888 void EFUSE_ShadowMapUpdate(struct adapter *pAdapter, u8 efuseType)
 889 {
 890         struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
 891
 892         if (pEEPROM->bautoload_fail_flag)
 893                 memset(pEEPROM->efuse_eeprom_data, 0xFF, EFUSE_MAP_LEN_88E);
 894         else
 895                 Efuse_ReadAllMap(pAdapter, efuseType, pEEPROM->efuse_eeprom_data);
 896 }