Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1 | /* |
| 2 | * rtl8712_efuse.c |
| 3 | * |
| 4 | * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. |
| 5 | * Linux device driver for RTL8192SU |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along with |
| 17 | * this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 19 | * |
| 20 | * Modifications for inclusion into the Linux staging tree are |
| 21 | * Copyright(c) 2010 Larry Finger. All rights reserved. |
| 22 | * |
| 23 | * Contact information: |
| 24 | * WLAN FAE <wlanfae@realtek.com>. |
| 25 | * Larry Finger <Larry.Finger@lwfinger.net> |
| 26 | * |
| 27 | ******************************************************************************/ |
| 28 | |
| 29 | #define _RTL8712_EFUSE_C_ |
| 30 | |
| 31 | #include "osdep_service.h" |
| 32 | #include "drv_types.h" |
| 33 | #include "rtl8712_efuse.h" |
| 34 | |
| 35 | /* reserve 3 bytes for HW stop read */ |
| 36 | static int efuse_available_max_size = EFUSE_MAX_SIZE - 3 /*0x1FD*/; |
| 37 | |
| 38 | static void efuse_reg_ctrl(struct _adapter *padapter, u8 bPowerOn) |
| 39 | { |
| 40 | u8 tmpu8 = 0; |
| 41 | |
| 42 | if (true == bPowerOn) { |
| 43 | /* -----------------e-fuse pwr & clk reg ctrl --------------- |
| 44 | * Enable LDOE25 Macro Block |
| 45 | */ |
| 46 | tmpu8 = r8712_read8(padapter, EFUSE_TEST + 3); |
| 47 | tmpu8 |= 0x80; |
| 48 | r8712_write8(padapter, EFUSE_TEST + 3, tmpu8); |
| 49 | msleep(20); /* for some platform , need some delay time */ |
| 50 | /* Change Efuse Clock for write action to 40MHZ */ |
| 51 | r8712_write8(padapter, EFUSE_CLK_CTRL, 0x03); |
| 52 | msleep(20); /* for some platform , need some delay time */ |
| 53 | } else { |
| 54 | /* -----------------e-fuse pwr & clk reg ctrl ----------------- |
| 55 | * Disable LDOE25 Macro Block |
| 56 | */ |
| 57 | tmpu8 = r8712_read8(padapter, EFUSE_TEST + 3); |
| 58 | tmpu8 &= 0x7F; |
| 59 | r8712_write8(padapter, EFUSE_TEST + 3, tmpu8); |
| 60 | /* Change Efuse Clock for write action to 500K */ |
| 61 | r8712_write8(padapter, EFUSE_CLK_CTRL, 0x02); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /* |
| 66 | * Before write E-Fuse, this function must be called. |
| 67 | */ |
| 68 | u8 r8712_efuse_reg_init(struct _adapter *padapter) |
| 69 | { |
| 70 | return true; |
| 71 | } |
| 72 | |
| 73 | void r8712_efuse_reg_uninit(struct _adapter *padapter) |
| 74 | { |
| 75 | efuse_reg_ctrl(padapter, false); |
| 76 | } |
| 77 | |
| 78 | static u8 efuse_one_byte_read(struct _adapter *padapter, u16 addr, u8 *data) |
| 79 | { |
| 80 | u8 tmpidx = 0, bResult; |
| 81 | |
| 82 | /* -----------------e-fuse reg ctrl --------------------------------- */ |
| 83 | r8712_write8(padapter, EFUSE_CTRL+1, (u8)(addr&0xFF)); /* address */ |
| 84 | r8712_write8(padapter, EFUSE_CTRL+2, ((u8)((addr>>8)&0x03)) | |
| 85 | (r8712_read8(padapter, EFUSE_CTRL+2)&0xFC)); |
| 86 | r8712_write8(padapter, EFUSE_CTRL+3, 0x72); /* read cmd */ |
| 87 | /* wait for complete */ |
| 88 | while (!(0x80 & r8712_read8(padapter, EFUSE_CTRL+3)) && (tmpidx < 100)) |
| 89 | tmpidx++; |
| 90 | if (tmpidx < 100) { |
| 91 | *data = r8712_read8(padapter, EFUSE_CTRL); |
| 92 | bResult = true; |
| 93 | } else { |
| 94 | *data = 0xff; |
| 95 | bResult = false; |
| 96 | } |
| 97 | return bResult; |
| 98 | } |
| 99 | |
| 100 | static u8 efuse_one_byte_write(struct _adapter *padapter, u16 addr, u8 data) |
| 101 | { |
| 102 | u8 tmpidx = 0, bResult; |
| 103 | |
| 104 | /* -----------------e-fuse reg ctrl -------------------------------- */ |
| 105 | r8712_write8(padapter, EFUSE_CTRL+1, (u8)(addr&0xFF)); /* address */ |
| 106 | r8712_write8(padapter, EFUSE_CTRL+2, ((u8)((addr>>8)&0x03)) | |
| 107 | (r8712_read8(padapter, EFUSE_CTRL+2)&0xFC)); |
| 108 | r8712_write8(padapter, EFUSE_CTRL, data); /* data */ |
| 109 | r8712_write8(padapter, EFUSE_CTRL+3, 0xF2); /* write cmd */ |
| 110 | /* wait for complete */ |
| 111 | while ((0x80 & r8712_read8(padapter, EFUSE_CTRL+3)) && (tmpidx < 100)) |
| 112 | tmpidx++; |
| 113 | if (tmpidx < 100) |
| 114 | bResult = true; |
| 115 | else |
| 116 | bResult = false; |
| 117 | return bResult; |
| 118 | } |
| 119 | |
| 120 | static u8 efuse_one_byte_rw(struct _adapter *padapter, u8 bRead, u16 addr, |
| 121 | u8 *data) |
| 122 | { |
| 123 | u8 tmpidx = 0, tmpv8 = 0, bResult; |
| 124 | |
| 125 | /* -----------------e-fuse reg ctrl --------------------------------- */ |
| 126 | r8712_write8(padapter, EFUSE_CTRL+1, (u8)(addr&0xFF)); /* address */ |
| 127 | tmpv8 = ((u8)((addr >> 8) & 0x03)) | |
| 128 | (r8712_read8(padapter, EFUSE_CTRL + 2) & 0xFC); |
| 129 | r8712_write8(padapter, EFUSE_CTRL+2, tmpv8); |
| 130 | if (true == bRead) { |
| 131 | r8712_write8(padapter, EFUSE_CTRL+3, 0x72); /* read cmd */ |
| 132 | while (!(0x80 & r8712_read8(padapter, EFUSE_CTRL+3)) && |
| 133 | (tmpidx < 100)) |
| 134 | tmpidx++; |
| 135 | if (tmpidx < 100) { |
| 136 | *data = r8712_read8(padapter, EFUSE_CTRL); |
| 137 | bResult = true; |
| 138 | } else { |
| 139 | *data = 0; |
| 140 | bResult = false; |
| 141 | } |
| 142 | } else { |
| 143 | r8712_write8(padapter, EFUSE_CTRL, *data); /* data */ |
| 144 | r8712_write8(padapter, EFUSE_CTRL+3, 0xF2); /* write cmd */ |
| 145 | while ((0x80 & r8712_read8(padapter, EFUSE_CTRL+3)) && |
| 146 | (tmpidx < 100)) |
| 147 | tmpidx++; |
| 148 | if (tmpidx < 100) |
| 149 | bResult = true; |
| 150 | else |
| 151 | bResult = false; |
| 152 | } |
| 153 | return bResult; |
| 154 | } |
| 155 | |
| 156 | static u8 efuse_is_empty(struct _adapter *padapter, u8 *empty) |
| 157 | { |
| 158 | u8 value, ret = true; |
| 159 | |
| 160 | /* read one byte to check if E-Fuse is empty */ |
| 161 | if (efuse_one_byte_rw(padapter, true, 0, &value) == true) { |
| 162 | if (0xFF == value) |
| 163 | *empty = true; |
| 164 | else |
| 165 | *empty = false; |
| 166 | } else |
| 167 | ret = false; |
| 168 | return ret; |
| 169 | } |
| 170 | |
| 171 | void r8712_efuse_change_max_size(struct _adapter *padapter) |
| 172 | { |
| 173 | u16 pre_pg_data_saddr = 0x1FB; |
| 174 | u16 i; |
| 175 | u16 pre_pg_data_size = 5; |
| 176 | u8 pre_pg_data[5]; |
| 177 | |
| 178 | for (i = 0; i < pre_pg_data_size; i++) |
| 179 | efuse_one_byte_read(padapter, pre_pg_data_saddr + i, |
| 180 | &pre_pg_data[i]); |
| 181 | if ((pre_pg_data[0] == 0x03) && (pre_pg_data[1] == 0x00) && |
| 182 | (pre_pg_data[2] == 0x00) && (pre_pg_data[3] == 0x00) && |
| 183 | (pre_pg_data[4] == 0x0C)) |
| 184 | efuse_available_max_size -= pre_pg_data_size; |
| 185 | } |
| 186 | |
| 187 | int r8712_efuse_get_max_size(struct _adapter *padapter) |
| 188 | { |
| 189 | return efuse_available_max_size; |
| 190 | } |
| 191 | |
| 192 | static u8 calculate_word_cnts(const u8 word_en) |
| 193 | { |
| 194 | u8 word_cnts = 0; |
| 195 | u8 word_idx; |
| 196 | |
| 197 | for (word_idx = 0; word_idx < PGPKG_MAX_WORDS; word_idx++) |
| 198 | if (!(word_en & BIT(word_idx))) |
| 199 | word_cnts++; /* 0 : write enable */ |
| 200 | return word_cnts; |
| 201 | } |
| 202 | |
| 203 | static void pgpacket_copy_data(const u8 word_en, const u8 *sourdata, |
| 204 | u8 *targetdata) |
| 205 | { |
| 206 | u8 tmpindex = 0; |
| 207 | u8 word_idx, byte_idx; |
| 208 | |
| 209 | for (word_idx = 0; word_idx < PGPKG_MAX_WORDS; word_idx++) { |
| 210 | if (!(word_en&BIT(word_idx))) { |
| 211 | byte_idx = word_idx * 2; |
| 212 | targetdata[byte_idx] = sourdata[tmpindex++]; |
| 213 | targetdata[byte_idx + 1] = sourdata[tmpindex++]; |
| 214 | } |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | u16 r8712_efuse_get_current_size(struct _adapter *padapter) |
| 219 | { |
| 220 | int bContinual = true; |
| 221 | u16 efuse_addr = 0; |
| 222 | u8 hoffset = 0, hworden = 0; |
| 223 | u8 efuse_data, word_cnts = 0; |
| 224 | |
| 225 | while (bContinual && efuse_one_byte_read(padapter, efuse_addr, |
| 226 | &efuse_data) && (efuse_addr < efuse_available_max_size)) { |
| 227 | if (efuse_data != 0xFF) { |
| 228 | hoffset = (efuse_data >> 4) & 0x0F; |
| 229 | hworden = efuse_data & 0x0F; |
| 230 | word_cnts = calculate_word_cnts(hworden); |
| 231 | /* read next header */ |
| 232 | efuse_addr = efuse_addr + (word_cnts * 2) + 1; |
| 233 | } else |
Thomas Cort | 77e73e8 | 2013-10-01 11:26:55 -0400 | [diff] [blame] | 234 | bContinual = false; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 235 | } |
| 236 | return efuse_addr; |
| 237 | } |
| 238 | |
| 239 | u8 r8712_efuse_pg_packet_read(struct _adapter *padapter, u8 offset, u8 *data) |
| 240 | { |
| 241 | u8 hoffset = 0, hworden = 0, word_cnts = 0; |
| 242 | u16 efuse_addr = 0; |
| 243 | u8 efuse_data; |
| 244 | u8 tmpidx = 0; |
| 245 | u8 tmpdata[PGPKT_DATA_SIZE]; |
| 246 | u8 ret = true; |
| 247 | |
| 248 | if (data == NULL) |
| 249 | return false; |
| 250 | if (offset > 0x0f) |
| 251 | return false; |
| 252 | memset(data, 0xFF, sizeof(u8)*PGPKT_DATA_SIZE); |
| 253 | while (efuse_addr < efuse_available_max_size) { |
| 254 | if (efuse_one_byte_read(padapter, efuse_addr, &efuse_data) == |
| 255 | true) { |
| 256 | if (efuse_data == 0xFF) |
| 257 | break; |
| 258 | hoffset = (efuse_data >> 4) & 0x0F; |
| 259 | hworden = efuse_data & 0x0F; |
| 260 | word_cnts = calculate_word_cnts(hworden); |
| 261 | if (hoffset == offset) { |
| 262 | memset(tmpdata, 0xFF, PGPKT_DATA_SIZE); |
| 263 | for (tmpidx = 0; tmpidx < word_cnts * 2; |
| 264 | tmpidx++) { |
| 265 | if (efuse_one_byte_read(padapter, |
| 266 | efuse_addr+1+tmpidx, &efuse_data) == |
| 267 | true) { |
| 268 | tmpdata[tmpidx] = efuse_data; |
| 269 | } else |
| 270 | ret = false; |
| 271 | } |
| 272 | pgpacket_copy_data(hworden, tmpdata, data); |
| 273 | } |
| 274 | efuse_addr += 1 + (word_cnts*2); |
| 275 | } else { |
| 276 | ret = false; |
| 277 | break; |
| 278 | } |
| 279 | } |
| 280 | return ret; |
| 281 | } |
| 282 | |
| 283 | static u8 fix_header(struct _adapter *padapter, u8 header, u16 header_addr) |
| 284 | { |
| 285 | struct PGPKT_STRUCT pkt; |
| 286 | u8 offset, word_en, value; |
| 287 | u16 addr; |
| 288 | int i; |
| 289 | u8 ret = true; |
| 290 | |
| 291 | pkt.offset = GET_EFUSE_OFFSET(header); |
| 292 | pkt.word_en = GET_EFUSE_WORD_EN(header); |
| 293 | addr = header_addr + 1 + calculate_word_cnts(pkt.word_en) * 2; |
| 294 | if (addr > efuse_available_max_size) |
| 295 | return false; |
| 296 | /* retrieve original data */ |
| 297 | addr = 0; |
| 298 | while (addr < header_addr) { |
| 299 | if (efuse_one_byte_read(padapter, addr++, &value) == false) { |
| 300 | ret = false; |
| 301 | break; |
| 302 | } |
| 303 | offset = GET_EFUSE_OFFSET(value); |
| 304 | word_en = GET_EFUSE_WORD_EN(value); |
| 305 | if (pkt.offset != offset) { |
| 306 | addr += calculate_word_cnts(word_en)*2; |
| 307 | continue; |
| 308 | } |
| 309 | for (i = 0; i < PGPKG_MAX_WORDS; i++) { |
Ali Bahar | 0aeb623 | 2011-09-04 03:14:17 +0800 | [diff] [blame] | 310 | if (BIT(i) & word_en) { |
| 311 | if (BIT(i) & pkt.word_en) { |
| 312 | if (efuse_one_byte_read( |
| 313 | padapter, addr, |
| 314 | &value) == true) |
| 315 | pkt.data[i*2] = value; |
| 316 | else |
| 317 | return false; |
| 318 | if (efuse_one_byte_read( |
| 319 | padapter, |
| 320 | addr + 1, |
| 321 | &value) == true) |
| 322 | pkt.data[i*2 + 1] = |
| 323 | value; |
| 324 | else |
| 325 | return false; |
| 326 | } |
| 327 | addr += 2; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 328 | } |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 329 | } |
| 330 | } |
| 331 | if (addr != header_addr) |
| 332 | return false; |
| 333 | addr++; |
| 334 | /* fill original data */ |
| 335 | for (i = 0; i < PGPKG_MAX_WORDS; i++) { |
Ali Bahar | 0aeb623 | 2011-09-04 03:14:17 +0800 | [diff] [blame] | 336 | if (BIT(i) & pkt.word_en) { |
| 337 | efuse_one_byte_write(padapter, addr, pkt.data[i*2]); |
| 338 | efuse_one_byte_write(padapter, addr+1, |
| 339 | pkt.data[i*2 + 1]); |
| 340 | /* additional check */ |
| 341 | if (efuse_one_byte_read(padapter, addr, &value) |
| 342 | == false) |
| 343 | ret = false; |
| 344 | else if (pkt.data[i*2] != value) { |
| 345 | ret = false; |
| 346 | if (0xFF == value) /* write again */ |
| 347 | efuse_one_byte_write(padapter, addr, |
| 348 | pkt.data[i * 2]); |
| 349 | } |
| 350 | if (efuse_one_byte_read(padapter, addr+1, &value) == |
| 351 | false) |
| 352 | ret = false; |
| 353 | else if (pkt.data[i*2 + 1] != value) { |
| 354 | ret = false; |
| 355 | if (0xFF == value) /* write again */ |
| 356 | efuse_one_byte_write(padapter, addr+1, |
| 357 | pkt.data[i*2 + 1]); |
| 358 | } |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 359 | } |
| 360 | addr += 2; |
| 361 | } |
| 362 | return ret; |
| 363 | } |
| 364 | |
| 365 | u8 r8712_efuse_pg_packet_write(struct _adapter *padapter, const u8 offset, |
| 366 | const u8 word_en, const u8 *data) |
| 367 | { |
| 368 | u8 pg_header = 0; |
| 369 | u16 efuse_addr = 0, curr_size = 0; |
| 370 | u8 efuse_data, target_word_cnts = 0; |
| 371 | static int repeat_times; |
| 372 | int sub_repeat; |
| 373 | u8 bResult = true; |
| 374 | |
| 375 | /* check if E-Fuse Clock Enable and E-Fuse Clock is 40M */ |
| 376 | efuse_data = r8712_read8(padapter, EFUSE_CLK_CTRL); |
| 377 | if (efuse_data != 0x03) |
| 378 | return false; |
| 379 | pg_header = MAKE_EFUSE_HEADER(offset, word_en); |
| 380 | target_word_cnts = calculate_word_cnts(word_en); |
| 381 | repeat_times = 0; |
| 382 | efuse_addr = 0; |
| 383 | while (efuse_addr < efuse_available_max_size) { |
| 384 | curr_size = r8712_efuse_get_current_size(padapter); |
| 385 | if ((curr_size + 1 + target_word_cnts * 2) > |
| 386 | efuse_available_max_size) |
| 387 | return false; /*target_word_cnts + pg header(1 byte)*/ |
| 388 | efuse_addr = curr_size; /* current size is also the last addr*/ |
| 389 | efuse_one_byte_write(padapter, efuse_addr, pg_header); /*hdr*/ |
| 390 | sub_repeat = 0; |
| 391 | /* check if what we read is what we write */ |
| 392 | while (efuse_one_byte_read(padapter, efuse_addr, |
| 393 | &efuse_data) == false) { |
| 394 | if (++sub_repeat > _REPEAT_THRESHOLD_) { |
| 395 | bResult = false; /* continue to blind write */ |
| 396 | break; /* continue to blind write */ |
| 397 | } |
| 398 | } |
| 399 | if ((sub_repeat > _REPEAT_THRESHOLD_) || |
| 400 | (pg_header == efuse_data)) { |
| 401 | /* write header ok OR can't check header(creep) */ |
| 402 | u8 i; |
| 403 | |
| 404 | /* go to next address */ |
| 405 | efuse_addr++; |
| 406 | for (i = 0; i < target_word_cnts*2; i++) { |
| 407 | efuse_one_byte_write(padapter, |
| 408 | efuse_addr + i, |
| 409 | *(data + i)); |
| 410 | if (efuse_one_byte_read(padapter, |
| 411 | efuse_addr + i, &efuse_data) == false) |
| 412 | bResult = false; |
| 413 | else if (*(data+i) != efuse_data) /* fail */ |
| 414 | bResult = false; |
| 415 | } |
| 416 | break; |
| 417 | } else { /* write header fail */ |
| 418 | bResult = false; |
| 419 | if (0xFF == efuse_data) |
Justin P. Mattock | be10ac2 | 2012-05-07 07:38:22 -0700 | [diff] [blame] | 420 | return bResult; /* nothing damaged. */ |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 421 | /* call rescue procedure */ |
| 422 | if (fix_header(padapter, efuse_data, efuse_addr) == |
| 423 | false) |
| 424 | return false; /* rescue fail */ |
| 425 | |
| 426 | if (++repeat_times > _REPEAT_THRESHOLD_) /* fail */ |
| 427 | break; |
| 428 | /* otherwise, take another risk... */ |
| 429 | } |
| 430 | } |
| 431 | return bResult; |
| 432 | } |
| 433 | |
| 434 | u8 r8712_efuse_access(struct _adapter *padapter, u8 bRead, u16 start_addr, |
| 435 | u16 cnts, u8 *data) |
| 436 | { |
| 437 | int i; |
Joe Perches | 859171c | 2010-11-14 19:04:48 -0800 | [diff] [blame] | 438 | u8 res = true; |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 439 | |
| 440 | if (start_addr > EFUSE_MAX_SIZE) |
| 441 | return false; |
| 442 | if ((bRead == false) && ((start_addr + cnts) > |
| 443 | efuse_available_max_size)) |
| 444 | return false; |
| 445 | if ((false == bRead) && (r8712_efuse_reg_init(padapter) == false)) |
| 446 | return false; |
| 447 | /* -----------------e-fuse one byte read / write ---------------------*/ |
| 448 | for (i = 0; i < cnts; i++) { |
| 449 | if ((start_addr + i) > EFUSE_MAX_SIZE) { |
| 450 | res = false; |
| 451 | break; |
| 452 | } |
| 453 | res = efuse_one_byte_rw(padapter, bRead, start_addr + i, |
| 454 | data + i); |
| 455 | if ((false == bRead) && (false == res)) |
| 456 | break; |
| 457 | } |
| 458 | if (false == bRead) |
| 459 | r8712_efuse_reg_uninit(padapter); |
| 460 | return res; |
| 461 | } |
| 462 | |
| 463 | u8 r8712_efuse_map_read(struct _adapter *padapter, u16 addr, u16 cnts, u8 *data) |
| 464 | { |
| 465 | u8 offset, ret = true; |
| 466 | u8 pktdata[PGPKT_DATA_SIZE]; |
| 467 | int i, idx; |
| 468 | |
| 469 | if ((addr + cnts) > EFUSE_MAP_MAX_SIZE) |
| 470 | return false; |
| 471 | if ((efuse_is_empty(padapter, &offset) == true) && (offset == |
| 472 | true)) { |
| 473 | for (i = 0; i < cnts; i++) |
| 474 | data[i] = 0xFF; |
| 475 | return ret; |
| 476 | } |
| 477 | offset = (addr >> 3) & 0xF; |
| 478 | ret = r8712_efuse_pg_packet_read(padapter, offset, pktdata); |
| 479 | i = addr & 0x7; /* pktdata index */ |
| 480 | idx = 0; /* data index */ |
| 481 | |
| 482 | do { |
| 483 | for (; i < PGPKT_DATA_SIZE; i++) { |
| 484 | data[idx++] = pktdata[i]; |
| 485 | if (idx == cnts) |
| 486 | return ret; |
| 487 | } |
| 488 | offset++; |
| 489 | if (!r8712_efuse_pg_packet_read(padapter, offset, pktdata)) |
| 490 | ret = false; |
| 491 | i = 0; |
| 492 | } while (1); |
| 493 | return ret; |
| 494 | } |
| 495 | |
| 496 | u8 r8712_efuse_map_write(struct _adapter *padapter, u16 addr, u16 cnts, |
| 497 | u8 *data) |
| 498 | { |
| 499 | u8 offset, word_en, empty; |
| 500 | u8 pktdata[PGPKT_DATA_SIZE], newdata[PGPKT_DATA_SIZE]; |
| 501 | int i, j, idx; |
| 502 | |
| 503 | if ((addr + cnts) > EFUSE_MAP_MAX_SIZE) |
| 504 | return false; |
| 505 | /* check if E-Fuse Clock Enable and E-Fuse Clock is 40M */ |
| 506 | empty = r8712_read8(padapter, EFUSE_CLK_CTRL); |
| 507 | if (empty != 0x03) |
| 508 | return false; |
| 509 | if (efuse_is_empty(padapter, &empty) == true) { |
| 510 | if (true == empty) |
| 511 | memset(pktdata, 0xFF, PGPKT_DATA_SIZE); |
| 512 | } else |
| 513 | return false; |
| 514 | offset = (addr >> 3) & 0xF; |
| 515 | if (empty == false) |
| 516 | if (!r8712_efuse_pg_packet_read(padapter, offset, pktdata)) |
| 517 | return false; |
| 518 | word_en = 0xF; |
| 519 | memset(newdata, 0xFF, PGPKT_DATA_SIZE); |
| 520 | i = addr & 0x7; /* pktdata index */ |
| 521 | j = 0; /* newdata index */ |
| 522 | idx = 0; /* data index */ |
| 523 | |
| 524 | if (i & 0x1) { |
| 525 | /* odd start */ |
| 526 | if (data[idx] != pktdata[i]) { |
| 527 | word_en &= ~BIT(i >> 1); |
| 528 | newdata[j++] = pktdata[i - 1]; |
| 529 | newdata[j++] = data[idx]; |
| 530 | } |
| 531 | i++; |
| 532 | idx++; |
| 533 | } |
| 534 | do { |
| 535 | for (; i < PGPKT_DATA_SIZE; i += 2) { |
| 536 | if ((cnts - idx) == 1) { |
| 537 | if (data[idx] != pktdata[i]) { |
| 538 | word_en &= ~BIT(i >> 1); |
| 539 | newdata[j++] = data[idx]; |
| 540 | newdata[j++] = pktdata[1 + 1]; |
| 541 | } |
| 542 | idx++; |
| 543 | break; |
| 544 | } else { |
| 545 | if ((data[idx] != pktdata[i]) || (data[idx+1] != |
| 546 | pktdata[i+1])) { |
| 547 | word_en &= ~BIT(i >> 1); |
| 548 | newdata[j++] = data[idx]; |
| 549 | newdata[j++] = data[idx + 1]; |
| 550 | } |
| 551 | idx += 2; |
| 552 | } |
| 553 | if (idx == cnts) |
| 554 | break; |
| 555 | } |
| 556 | |
| 557 | if (word_en != 0xF) |
| 558 | if (r8712_efuse_pg_packet_write(padapter, offset, |
| 559 | word_en, newdata) == false) |
| 560 | return false; |
| 561 | if (idx == cnts) |
| 562 | break; |
| 563 | offset++; |
| 564 | if (empty == false) |
| 565 | if (!r8712_efuse_pg_packet_read(padapter, offset, |
| 566 | pktdata)) |
| 567 | return false; |
| 568 | i = 0; |
| 569 | j = 0; |
| 570 | word_en = 0xF; |
| 571 | memset(newdata, 0xFF, PGPKT_DATA_SIZE); |
| 572 | } while (1); |
| 573 | |
| 574 | return true; |
| 575 | } |