LXR linux/drivers/staging/rtl8188eu/core/rtw

   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
  19enum{
  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 */
  28void 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
  74static void
  75efuse_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
 196exit:
 197        kfree(eFuseWord);
 198
 199eFuseWord_failed:
 200        kfree(efuseTbl);
 201}
 202
 203static 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
 285static 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
 301void 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
 311u8 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
 363static 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                        if ((efuse_data&0x1F) == 0x0F) {                /* extended header */
 375                                hoffset = efuse_data;
 376                                efuse_addr++;
 377                                efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 378                                if ((efuse_data & 0x0F) == 0x0F) {
 379                                        efuse_addr++;
 380                                        continue;
 381                                } else {
 382                                        hoffset = ((hoffset & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 383                                        hworden = efuse_data & 0x0F;
 384                                }
 385                        } else {
 386                                hoffset = (efuse_data>>4) & 0x0F;
 387                                hworden =  efuse_data & 0x0F;
 388                        }
 389                        word_cnts = Efuse_CalculateWordCnts(hworden);
 390                        /* read next header */
 391                        efuse_addr = efuse_addr + (word_cnts*2)+1;
 392                } else {
 393                        break;
 394                }
 395        }
 396
 397        rtw_hal_set_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
 398
 399        return efuse_addr;
 400}
 401
 402int Efuse_PgPacketRead(struct adapter *pAdapter, u8 offset, u8 *data)
 403{
 404        u8 ReadState = PG_STATE_HEADER;
 405        int     bContinual = true;
 406        int     bDataEmpty = true;
 407        u8 efuse_data, word_cnts = 0;
 408        u16     efuse_addr = 0;
 409        u8 hoffset = 0, hworden = 0;
 410        u8 tmpidx = 0;
 411        u8 tmpdata[8];
 412        u8 tmp_header = 0;
 413
 414        if (!data)
 415                return false;
 416        if (offset > EFUSE_MAX_SECTION_88E)
 417                return false;
 418
 419        memset(data, 0xff, sizeof(u8) * PGPKT_DATA_SIZE);
 420        memset(tmpdata, 0xff, sizeof(u8) * PGPKT_DATA_SIZE);
 421
 422        /*  <Roger_TODO> Efuse has been pre-programmed dummy 5Bytes at the end of Efuse by CP. */
 423        /*  Skip dummy parts to prevent unexpected data read from Efuse. */
 424        /*  By pass right now. 2009.02.19. */
 425        while (bContinual && AVAILABLE_EFUSE_ADDR(efuse_addr)) {
 426                /*   Header Read ------------- */
 427                if (ReadState & PG_STATE_HEADER) {
 428                        if (efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data) && (efuse_data != 0xFF)) {
 429                                if (EXT_HEADER(efuse_data)) {
 430                                        tmp_header = efuse_data;
 431                                        efuse_addr++;
 432                                        efuse_OneByteRead(pAdapter, efuse_addr, &efuse_data);
 433                                        if (!ALL_WORDS_DISABLED(efuse_data)) {
 434                                                hoffset = ((tmp_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 435                                                hworden = efuse_data & 0x0F;
 436                                        } else {
 437                                                DBG_88E("Error, All words disabled\n");
 438                                                efuse_addr++;
 439                                                continue;
 440                                        }
 441                                } else {
 442                                        hoffset = (efuse_data>>4) & 0x0F;
 443                                        hworden =  efuse_data & 0x0F;
 444                                }
 445                                word_cnts = Efuse_CalculateWordCnts(hworden);
 446                                bDataEmpty = true;
 447
 448                                if (hoffset == offset) {
 449                                        for (tmpidx = 0; tmpidx < word_cnts*2; tmpidx++) {
 450                                                if (efuse_OneByteRead(pAdapter, efuse_addr+1+tmpidx, &efuse_data)) {
 451                                                        tmpdata[tmpidx] = efuse_data;
 452                                                        if (efuse_data != 0xff)
 453                                                                bDataEmpty = false;
 454                                                }
 455                                        }
 456                                        if (!bDataEmpty) {
 457                                                ReadState = PG_STATE_DATA;
 458                                        } else {/* read next header */
 459                                                efuse_addr = efuse_addr + (word_cnts*2)+1;
 460                                                ReadState = PG_STATE_HEADER;
 461                                        }
 462                                } else {/* read next header */
 463                                        efuse_addr = efuse_addr + (word_cnts*2)+1;
 464                                        ReadState = PG_STATE_HEADER;
 465                                }
 466                        } else {
 467                                bContinual = false;
 468                        }
 469                } else if (ReadState & PG_STATE_DATA) {
 470                        /*   Data section Read ------------- */
 471                        efuse_WordEnableDataRead(hworden, tmpdata, data);
 472                        efuse_addr = efuse_addr + (word_cnts*2)+1;
 473                        ReadState = PG_STATE_HEADER;
 474                }
 475        }
 476
 477        if ((data[0] == 0xff) && (data[1] == 0xff) && (data[2] == 0xff)  && (data[3] == 0xff) &&
 478            (data[4] == 0xff) && (data[5] == 0xff) && (data[6] == 0xff)  && (data[7] == 0xff))
 479                return false;
 480        else
 481                return true;
 482}
 483
 484static bool hal_EfuseFixHeaderProcess(struct adapter *pAdapter, u8 efuseType, struct pgpkt *pFixPkt, u16 *pAddr)
 485{
 486        u8 originaldata[8], badworden = 0;
 487        u16     efuse_addr = *pAddr;
 488        u32     PgWriteSuccess = 0;
 489
 490        memset(originaldata, 0xff, 8);
 491
 492        if (Efuse_PgPacketRead(pAdapter, pFixPkt->offset, originaldata)) {
 493                /* check if data exist */
 494                badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr+1, pFixPkt->word_en, originaldata);
 495
 496                if (badworden != 0xf) { /*  write fail */
 497                        PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pFixPkt->offset, badworden, originaldata);
 498
 499                        if (!PgWriteSuccess)
 500                                return false;
 501                        else
 502                                efuse_addr = Efuse_GetCurrentSize(pAdapter);
 503                } else {
 504                        efuse_addr = efuse_addr + (pFixPkt->word_cnts*2) + 1;
 505                }
 506        } else {
 507                efuse_addr = efuse_addr + (pFixPkt->word_cnts*2) + 1;
 508        }
 509        *pAddr = efuse_addr;
 510        return true;
 511}
 512
 513static bool hal_EfusePgPacketWrite2ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 514{
 515        bool ret = false;
 516        u16 efuse_addr = *pAddr;
 517        u16 efuse_max_available_len =
 518                EFUSE_REAL_CONTENT_LEN_88E - EFUSE_OOB_PROTECT_BYTES_88E;
 519        u8 pg_header = 0, tmp_header = 0, pg_header_temp = 0;
 520        u8 repeatcnt = 0;
 521
 522        while (efuse_addr < efuse_max_available_len) {
 523                pg_header = ((pTargetPkt->offset & 0x07) << 5) | 0x0F;
 524                efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 525                efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 526
 527                while (tmp_header == 0xFF) {
 528                        if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 529                                return false;
 530
 531                        efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 532                        efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 533                }
 534
 535                /* to write ext_header */
 536                if (tmp_header == pg_header) {
 537                        efuse_addr++;
 538                        pg_header_temp = pg_header;
 539                        pg_header = ((pTargetPkt->offset & 0x78) << 1) | pTargetPkt->word_en;
 540
 541                        efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 542                        efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 543
 544                        while (tmp_header == 0xFF) {
 545                                if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 546                                        return false;
 547
 548                                efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 549                                efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 550                        }
 551
 552                        if ((tmp_header & 0x0F) == 0x0F) {      /* word_en PG fail */
 553                                if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 554                                        return false;
 555
 556                                efuse_addr++;
 557                                continue;
 558                        } else if (pg_header != tmp_header) {   /* offset PG fail */
 559                                struct pgpkt    fixPkt;
 560
 561                                fixPkt.offset = ((pg_header_temp & 0xE0) >> 5) | ((tmp_header & 0xF0) >> 1);
 562                                fixPkt.word_en = tmp_header & 0x0F;
 563                                fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 564                                if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 565                                        return false;
 566                        } else {
 567                                ret = true;
 568                                break;
 569                        }
 570                } else if ((tmp_header & 0x1F) == 0x0F) {               /* wrong extended header */
 571                        efuse_addr += 2;
 572                        continue;
 573                }
 574        }
 575
 576        *pAddr = efuse_addr;
 577        return ret;
 578}
 579
 580static bool hal_EfusePgPacketWrite1ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 581{
 582        bool ret = false;
 583        u8 pg_header = 0, tmp_header = 0;
 584        u16     efuse_addr = *pAddr;
 585        u8 repeatcnt = 0;
 586
 587        pg_header = ((pTargetPkt->offset << 4) & 0xf0) | pTargetPkt->word_en;
 588
 589        efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 590        efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 591
 592        while (tmp_header == 0xFF) {
 593                if (repeatcnt++ > EFUSE_REPEAT_THRESHOLD_)
 594                        return false;
 595                efuse_OneByteWrite(pAdapter, efuse_addr, pg_header);
 596                efuse_OneByteRead(pAdapter, efuse_addr, &tmp_header);
 597        }
 598
 599        if (pg_header == tmp_header) {
 600                ret = true;
 601        } else {
 602                struct pgpkt    fixPkt;
 603
 604                fixPkt.offset = (tmp_header>>4) & 0x0F;
 605                fixPkt.word_en = tmp_header & 0x0F;
 606                fixPkt.word_cnts = Efuse_CalculateWordCnts(fixPkt.word_en);
 607                if (!hal_EfuseFixHeaderProcess(pAdapter, efuseType, &fixPkt, &efuse_addr))
 608                        return false;
 609        }
 610
 611        *pAddr = efuse_addr;
 612        return ret;
 613}
 614
 615static bool hal_EfusePgPacketWriteData(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 616{
 617        u16     efuse_addr = *pAddr;
 618        u8 badworden = 0;
 619        u32     PgWriteSuccess = 0;
 620
 621        badworden = 0x0f;
 622        badworden = Efuse_WordEnableDataWrite(pAdapter, efuse_addr+1, pTargetPkt->word_en, pTargetPkt->data);
 623        if (badworden == 0x0F) {
 624                /*  write ok */
 625                return true;
 626        }
 627        /* reorganize other pg packet */
 628        PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 629        if (!PgWriteSuccess)
 630                return false;
 631        else
 632                return true;
 633}
 634
 635static bool
 636hal_EfusePgPacketWriteHeader(
 637                                struct adapter *pAdapter,
 638                                u8 efuseType,
 639                                u16                             *pAddr,
 640                                struct pgpkt *pTargetPkt)
 641{
 642        bool ret = false;
 643
 644        if (pTargetPkt->offset >= EFUSE_MAX_SECTION_BASE)
 645                ret = hal_EfusePgPacketWrite2ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 646        else
 647                ret = hal_EfusePgPacketWrite1ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
 648
 649        return ret;
 650}
 651
 652static bool wordEnMatched(struct pgpkt *pTargetPkt, struct pgpkt *pCurPkt,
 653                          u8 *pWden)
 654{
 655        u8 match_word_en = 0x0F;        /*  default all words are disabled */
 656
 657        /*  check if the same words are enabled both target and current PG packet */
 658        if (((pTargetPkt->word_en & BIT(0)) == 0) &&
 659            ((pCurPkt->word_en & BIT(0)) == 0))
 660                match_word_en &= ~BIT(0);                               /*  enable word 0 */
 661        if (((pTargetPkt->word_en & BIT(1)) == 0) &&
 662            ((pCurPkt->word_en & BIT(1)) == 0))
 663                match_word_en &= ~BIT(1);                               /*  enable word 1 */
 664        if (((pTargetPkt->word_en & BIT(2)) == 0) &&
 665            ((pCurPkt->word_en & BIT(2)) == 0))
 666                match_word_en &= ~BIT(2);                               /*  enable word 2 */
 667        if (((pTargetPkt->word_en & BIT(3)) == 0) &&
 668            ((pCurPkt->word_en & BIT(3)) == 0))
 669                match_word_en &= ~BIT(3);                               /*  enable word 3 */
 670
 671        *pWden = match_word_en;
 672
 673        if (match_word_en != 0xf)
 674                return true;
 675        else
 676                return false;
 677}
 678
 679static bool hal_EfuseCheckIfDatafollowed(struct adapter *pAdapter, u8 word_cnts, u16 startAddr)
 680{
 681        bool ret = false;
 682        u8 i, efuse_data;
 683
 684        for (i = 0; i < (word_cnts*2); i++) {
 685                if (efuse_OneByteRead(pAdapter, (startAddr+i), &efuse_data) && (efuse_data != 0xFF))
 686                        ret = true;
 687        }
 688        return ret;
 689}
 690
 691static bool hal_EfusePartialWriteCheck(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
 692{
 693        bool ret = false;
 694        u8 i, efuse_data = 0, cur_header = 0;
 695        u8 matched_wden = 0, badworden = 0;
 696        u16 startAddr = 0;
 697        u16 efuse_max_available_len =
 698                EFUSE_REAL_CONTENT_LEN_88E - EFUSE_OOB_PROTECT_BYTES_88E;
 699        struct pgpkt curPkt;
 700
 701        rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&startAddr);
 702        startAddr %= EFUSE_REAL_CONTENT_LEN;
 703
 704        while (1) {
 705                if (startAddr >= efuse_max_available_len) {
 706                        ret = false;
 707                        break;
 708                }
 709
 710                if (efuse_OneByteRead(pAdapter, startAddr, &efuse_data) && (efuse_data != 0xFF)) {
 711                        if (EXT_HEADER(efuse_data)) {
 712                                cur_header = efuse_data;
 713                                startAddr++;
 714                                efuse_OneByteRead(pAdapter, startAddr, &efuse_data);
 715                                if (ALL_WORDS_DISABLED(efuse_data)) {
 716                                        ret = false;
 717                                        break;
 718                                } else {
 719                                        curPkt.offset = ((cur_header & 0xE0) >> 5) | ((efuse_data & 0xF0) >> 1);
 720                                        curPkt.word_en = efuse_data & 0x0F;
 721                                }
 722                        } else {
 723                                cur_header  =  efuse_data;
 724                                curPkt.offset = (cur_header>>4) & 0x0F;
 725                                curPkt.word_en = cur_header & 0x0F;
 726                        }
 727
 728                        curPkt.word_cnts = Efuse_CalculateWordCnts(curPkt.word_en);
 729                        /*  if same header is found but no data followed */
 730                        /*  write some part of data followed by the header. */
 731                        if ((curPkt.offset == pTargetPkt->offset) &&
 732                            (!hal_EfuseCheckIfDatafollowed(pAdapter, curPkt.word_cnts, startAddr+1)) &&
 733                            wordEnMatched(pTargetPkt, &curPkt, &matched_wden)) {
 734                                /*  Here to write partial data */
 735                                badworden = Efuse_WordEnableDataWrite(pAdapter, startAddr+1, matched_wden, pTargetPkt->data);
 736                                if (badworden != 0x0F) {
 737                                        u32     PgWriteSuccess = 0;
 738                                        /*  if write fail on some words, write these bad words again */
 739
 740                                        PgWriteSuccess = Efuse_PgPacketWrite(pAdapter, pTargetPkt->offset, badworden, pTargetPkt->data);
 741
 742                                        if (!PgWriteSuccess) {
 743                                                ret = false;    /*  write fail, return */
 744                                                break;
 745                                        }
 746                                }
 747                                /*  partial write ok, update the target packet for later use */
 748                                for (i = 0; i < 4; i++) {
 749                                        if ((matched_wden & (0x1<<i)) == 0)     /*  this word has been written */
 750                                                pTargetPkt->word_en |= (0x1<<i);        /*  disable the word */
 751                                }
 752                                pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 753                        }
 754                        /*  read from next header */
 755                        startAddr = startAddr + (curPkt.word_cnts*2) + 1;
 756                } else {
 757                        /*  not used header, 0xff */
 758                        *pAddr = startAddr;
 759                        ret = true;
 760                        break;
 761                }
 762        }
 763        return ret;
 764}
 765
 766static bool
 767hal_EfusePgCheckAvailableAddr(
 768                struct adapter *pAdapter,
 769                u8 efuseType
 770        )
 771{
 772        if (Efuse_GetCurrentSize(pAdapter) >= EFUSE_MAP_LEN_88E)
 773                return false;
 774        return true;
 775}
 776
 777static void hal_EfuseConstructPGPkt(u8 offset, u8 word_en, u8 *pData, struct pgpkt *pTargetPkt)
 778{
 779        memset((void *)pTargetPkt->data, 0xFF, sizeof(u8)*8);
 780        pTargetPkt->offset = offset;
 781        pTargetPkt->word_en = word_en;
 782        efuse_WordEnableDataRead(word_en, pData, pTargetPkt->data);
 783        pTargetPkt->word_cnts = Efuse_CalculateWordCnts(pTargetPkt->word_en);
 784}
 785
 786bool Efuse_PgPacketWrite(struct adapter *pAdapter, u8 offset, u8 word_en, u8 *pData)
 787{
 788        struct pgpkt    targetPkt;
 789        u16                     startAddr = 0;
 790        u8 efuseType = EFUSE_WIFI;
 791
 792        if (!hal_EfusePgCheckAvailableAddr(pAdapter, efuseType))
 793                return false;
 794
 795        hal_EfuseConstructPGPkt(offset, word_en, pData, &targetPkt);
 796
 797        if (!hal_EfusePartialWriteCheck(pAdapter, efuseType, &startAddr, &targetPkt))
 798                return false;
 799
 800        if (!hal_EfusePgPacketWriteHeader(pAdapter, efuseType, &startAddr, &targetPkt))
 801                return false;
 802
 803        if (!hal_EfusePgPacketWriteData(pAdapter, efuseType, &startAddr, &targetPkt))
 804                return false;
 805
 806        return true;
 807}
 808
 809u8 Efuse_CalculateWordCnts(u8 word_en)
 810{
 811        u8 word_cnts = 0;
 812
 813        if (!(word_en & BIT(0)))
 814                word_cnts++; /*  0 : write enable */
 815        if (!(word_en & BIT(1)))
 816                word_cnts++;
 817        if (!(word_en & BIT(2)))
 818                word_cnts++;
 819        if (!(word_en & BIT(3)))
 820                word_cnts++;
 821        return word_cnts;
 822}
 823
 824u8 efuse_OneByteRead(struct adapter *pAdapter, u16 addr, u8 *data)
 825{
 826        u8 tmpidx = 0;
 827        u8 result;
 828
 829        usb_write8(pAdapter, EFUSE_CTRL+1, (u8)(addr & 0xff));
 830        usb_write8(pAdapter, EFUSE_CTRL+2, ((u8)((addr>>8) & 0x03)) |
 831                   (usb_read8(pAdapter, EFUSE_CTRL+2) & 0xFC));
 832
 833        usb_write8(pAdapter, EFUSE_CTRL+3,  0x72);/* read cmd */
 834
 835        while (!(0x80 & usb_read8(pAdapter, EFUSE_CTRL+3)) && (tmpidx < 100))
 836                tmpidx++;
 837        if (tmpidx < 100) {
 838                *data = usb_read8(pAdapter, EFUSE_CTRL);
 839                result = true;
 840        } else {
 841                *data = 0xff;
 842                result = false;
 843        }
 844        return result;
 845}
 846
 847u8 efuse_OneByteWrite(struct adapter *pAdapter, u16 addr, u8 data)
 848{
 849        u8 tmpidx = 0;
 850        u8 result;
 851
 852        usb_write8(pAdapter, EFUSE_CTRL+1, (u8)(addr&0xff));
 853        usb_write8(pAdapter, EFUSE_CTRL+2,
 854                   (usb_read8(pAdapter, EFUSE_CTRL+2) & 0xFC) |
 855                   (u8)((addr>>8) & 0x03));
 856        usb_write8(pAdapter, EFUSE_CTRL, data);/* data */
 857
 858        usb_write8(pAdapter, EFUSE_CTRL+3, 0xF2);/* write cmd */
 859
 860        while ((0x80 &  usb_read8(pAdapter, EFUSE_CTRL+3)) && (tmpidx < 100))
 861                tmpidx++;
 862
 863        if (tmpidx < 100)
 864                result = true;
 865        else
 866                result = false;
 867
 868        return result;
 869}
 870
 871/* Read allowed word in current efuse section data. */
 872void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata)
 873{
 874        if (!(word_en & BIT(0))) {
 875                targetdata[0] = sourdata[0];
 876                targetdata[1] = sourdata[1];
 877        }
 878        if (!(word_en & BIT(1))) {
 879                targetdata[2] = sourdata[2];
 880                targetdata[3] = sourdata[3];
 881        }
 882        if (!(word_en & BIT(2))) {
 883                targetdata[4] = sourdata[4];
 884                targetdata[5] = sourdata[5];
 885        }
 886        if (!(word_en & BIT(3))) {
 887                targetdata[6] = sourdata[6];
 888                targetdata[7] = sourdata[7];
 889        }
 890}
 891
 892/* Read All Efuse content */
 893static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 efuseType, u8 *Efuse)
 894{
 895        efuse_power_switch(pAdapter, false, true);
 896
 897        efuse_ReadEFuse(pAdapter, efuseType, 0, EFUSE_MAP_LEN_88E, Efuse);
 898
 899        efuse_power_switch(pAdapter, false, false);
 900}
 901
 902/* Transfer current EFUSE content to shadow init and modify map. */
 903void EFUSE_ShadowMapUpdate(struct adapter *pAdapter, u8 efuseType)
 904{
 905        struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
 906
 907        if (pEEPROM->bautoload_fail_flag)
 908                memset(pEEPROM->efuse_eeprom_data, 0xFF, EFUSE_MAP_LEN_88E);
 909        else
 910                Efuse_ReadAllMap(pAdapter, efuseType, pEEPROM->efuse_eeprom_data);
 911}
 912