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 * Function: efuse_power_switch
26 *
27 * Overview: When we want to enable write operation, we should change to
28 * pwr on state. When we stop write, we should switch to 500k mode
29 * and disable LDO 2.5V.
30 */
31
efuse_power_switch(struct adapter * pAdapter,u8 write,u8 pwrstate)32 void efuse_power_switch(struct adapter *pAdapter, u8 write, u8 pwrstate)
33 {
34 u8 tempval;
35 u16 tmpv16;
36
37 if (pwrstate) {
38 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);
39
40 /* 1.2V Power: From VDDON with Power Cut(0x0000h[15]), default valid */
41 tmpv16 = usb_read16(pAdapter, REG_SYS_ISO_CTRL);
42 if (!(tmpv16 & PWC_EV12V)) {
43 tmpv16 |= PWC_EV12V;
44 usb_write16(pAdapter, REG_SYS_ISO_CTRL, tmpv16);
45 }
46 /* Reset: 0x0000h[28], default valid */
47 tmpv16 = usb_read16(pAdapter, REG_SYS_FUNC_EN);
48 if (!(tmpv16 & FEN_ELDR)) {
49 tmpv16 |= FEN_ELDR;
50 usb_write16(pAdapter, REG_SYS_FUNC_EN, tmpv16);
51 }
52
53 /* Clock: Gated(0x0008h[5]) 8M(0x0008h[1]) clock from ANA, default valid */
54 tmpv16 = usb_read16(pAdapter, REG_SYS_CLKR);
55 if ((!(tmpv16 & LOADER_CLK_EN)) || (!(tmpv16 & ANA8M))) {
56 tmpv16 |= (LOADER_CLK_EN | ANA8M);
57 usb_write16(pAdapter, REG_SYS_CLKR, tmpv16);
58 }
59
60 if (write) {
61 /* Enable LDO 2.5V before read/write action */
62 tempval = usb_read8(pAdapter, EFUSE_TEST + 3);
63 tempval &= 0x0F;
64 tempval |= (VOLTAGE_V25 << 4);
65 usb_write8(pAdapter, EFUSE_TEST + 3, (tempval | 0x80));
66 }
67 } else {
68 usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);
69
70 if (write) {
71 /* Disable LDO 2.5V after read/write action */
72 tempval = usb_read8(pAdapter, EFUSE_TEST + 3);
73 usb_write8(pAdapter, EFUSE_TEST + 3, (tempval & 0x7F));
74 }
75 }
76 }
77
78 static void
efuse_phymap_to_logical(u8 * phymap,u16 _offset,u16 _size_byte,u8 * pbuf)79 efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8 *pbuf)
80 {
81 u8 *efuseTbl = NULL;
82 u8 rtemp8;
83 u16 eFuse_Addr = 0;
84 u8 offset, wren;
85 u16 i, j;
86 u16 **eFuseWord = NULL;
87 u16 efuse_utilized = 0;
88 u8 u1temp = 0;
89
90 efuseTbl = kzalloc(EFUSE_MAP_LEN_88E, GFP_KERNEL);
91 if (!efuseTbl)
92 return;
93
94 eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
95 if (!eFuseWord) {
96 DBG_88E("%s: alloc eFuseWord fail!\n", __func__);
97 goto eFuseWord_failed;
98 }
99
100 /* 0. Refresh efuse init map as all oxFF. */
101 for (i = 0; i < EFUSE_MAX_SECTION_88E; i++)
102 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
103 eFuseWord[i][j] = 0xFFFF;
104
105 /* */
106 /* 1. Read the first byte to check if efuse is empty!!! */
107 /* */
108 /* */
109 rtemp8 = *(phymap+eFuse_Addr);
110 if (rtemp8 != 0xFF) {
111 efuse_utilized++;
112 eFuse_Addr++;
113 } else {
114 DBG_88E("EFUSE is empty efuse_Addr-%d efuse_data =%x\n", eFuse_Addr, rtemp8);
115 goto exit;
116 }
117
118 /* */
119 /* 2. Read real efuse content. Filter PG header and every section data. */
120 /* */
121 while ((rtemp8 != 0xFF) && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
122 /* Check PG header for section num. */
123 if ((rtemp8 & 0x1F) == 0x0F) { /* extended header */
124 u1temp = (rtemp8 & 0xE0) >> 5;
125 rtemp8 = *(phymap+eFuse_Addr);
126 if ((rtemp8 & 0x0F) == 0x0F) {
127 eFuse_Addr++;
128 rtemp8 = *(phymap+eFuse_Addr);
129
130 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E))
131 eFuse_Addr++;
132 continue;
133 } else {
134 offset = ((rtemp8 & 0xF0) >> 1) | u1temp;
135 wren = rtemp8 & 0x0F;
136 eFuse_Addr++;
137 }
138 } else {
139 offset = (rtemp8 >> 4) & 0x0f;
140 wren = rtemp8 & 0x0f;
141 }
142
143 if (offset < EFUSE_MAX_SECTION_88E) {
144 /* Get word enable value from PG header */
145 for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
146 /* Check word enable condition in the section */
147 if (!(wren & 0x01)) {
148 rtemp8 = *(phymap+eFuse_Addr);
149 eFuse_Addr++;
150 efuse_utilized++;
151 eFuseWord[offset][i] = (rtemp8 & 0xff);
152 if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
153 break;
154 rtemp8 = *(phymap+eFuse_Addr);
155 eFuse_Addr++;
156 efuse_utilized++;
157 eFuseWord[offset][i] |= (((u16)rtemp8 << 8) & 0xff00);
158
159 if (eFuse_Addr >= EFUSE_REAL_CONTENT_LEN_88E)
160 break;
161 }
162 wren >>= 1;
163 }
164 }
165 /* Read next PG header */
166 rtemp8 = *(phymap+eFuse_Addr);
167
168 if (rtemp8 != 0xFF && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
169 efuse_utilized++;
170 eFuse_Addr++;
171 }
172 }
173
174 /* */
175 /* 3. Collect 16 sections and 4 word unit into Efuse map. */
176 /* */
177 for (i = 0; i < EFUSE_MAX_SECTION_88E; i++) {
178 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
179 efuseTbl[(i*8)+(j*2)] = (eFuseWord[i][j] & 0xff);
180 efuseTbl[(i*8)+((j*2)+1)] = ((eFuseWord[i][j] >> 8) & 0xff);
181 }
182 }
183
184 /* */
185 /* 4. Copy from Efuse map to output pointer memory!!! */
186 /* */
187 for (i = 0; i < _size_byte; i++)
188 pbuf[i] = efuseTbl[_offset+i];
189
190 /* */
191 /* 5. Calculate Efuse utilization. */
192 /* */
193
194 exit:
195 kfree(eFuseWord);
196
197 eFuseWord_failed:
198 kfree(efuseTbl);
199 }
200
efuse_read_phymap_from_txpktbuf(struct adapter * adapter,int bcnhead,u8 * content,u16 * size)201 static void efuse_read_phymap_from_txpktbuf(
202 struct adapter *adapter,
203 int bcnhead, /* beacon head, where FW store len(2-byte) and efuse physical map. */
204 u8 *content, /* buffer to store efuse physical map */
205 u16 *size /* for efuse content: the max byte to read. will update to byte read */
206 )
207 {
208 u16 dbg_addr = 0;
209 unsigned long start = 0;
210 u8 reg_0x143 = 0;
211 u32 lo32 = 0, hi32 = 0;
212 u16 len = 0, count = 0;
213 int i = 0;
214 u16 limit = *size;
215
216 u8 *pos = content;
217
218 if (bcnhead < 0) /* if not valid */
219 bcnhead = usb_read8(adapter, REG_TDECTRL+1);
220
221 DBG_88E("%s bcnhead:%d\n", __func__, bcnhead);
222
223 usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
224
225 dbg_addr = bcnhead*128/8; /* 8-bytes addressing */
226
227 while (1) {
228 usb_write16(adapter, REG_PKTBUF_DBG_ADDR, dbg_addr+i);
229
230 usb_write8(adapter, REG_TXPKTBUF_DBG, 0);
231 start = jiffies;
232 while (!(reg_0x143 = usb_read8(adapter, REG_TXPKTBUF_DBG)) &&
233 jiffies_to_msecs(jiffies - start) < 1000) {
234 DBG_88E("%s polling reg_0x143:0x%02x, reg_0x106:0x%02x\n", __func__, reg_0x143, usb_read8(adapter, 0x106));
235 usleep_range(1000, 2000);
236 }
237
238 lo32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_L);
239 hi32 = usb_read32(adapter, REG_PKTBUF_DBG_DATA_H);
240
241 if (i == 0) {
242 u8 lenc[2];
243 u16 lenbak, aaabak;
244 u16 aaa;
245
246 lenc[0] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L);
247 lenc[1] = usb_read8(adapter, REG_PKTBUF_DBG_DATA_L+1);
248
249 aaabak = le16_to_cpup((__le16 *)lenc);
250 lenbak = le16_to_cpu(*((__le16 *)lenc));
251 aaa = le16_to_cpup((__le16 *)&lo32);
252 len = le16_to_cpu(*((__le16 *)&lo32));
253
254 limit = min_t(u16, len-2, limit);
255
256 DBG_88E("%s len:%u, lenbak:%u, aaa:%u, aaabak:%u\n", __func__, len, lenbak, aaa, aaabak);
257
258 memcpy(pos, ((u8 *)&lo32)+2, (limit >= count+2) ? 2 : limit-count);
259 count += (limit >= count+2) ? 2 : limit-count;
260 pos = content+count;
261
262 } else {
263 memcpy(pos, ((u8 *)&lo32), (limit >= count+4) ? 4 : limit-count);
264 count += (limit >= count+4) ? 4 : limit-count;
265 pos = content+count;
266 }
267
268 if (limit > count && len-2 > count) {
269 memcpy(pos, (u8 *)&hi32, (limit >= count+4) ? 4 : limit-count);
270 count += (limit >= count+4) ? 4 : limit-count;
271 pos = content+count;
272 }
273
274 if (limit <= count || len-2 <= count)
275 break;
276 i++;
277 }
278 usb_write8(adapter, REG_PKT_BUFF_ACCESS_CTRL, DISABLE_TRXPKT_BUF_ACCESS);
279 DBG_88E("%s read count:%u\n", __func__, count);
280 *size = count;
281 }
282
iol_read_efuse(struct adapter * padapter,u8 txpktbuf_bndy,u16 offset,u16 size_byte,u8 * logical_map)283 static s32 iol_read_efuse(struct adapter *padapter, u8 txpktbuf_bndy, u16 offset, u16 size_byte, u8 *logical_map)
284 {
285 s32 status = _FAIL;
286 u8 physical_map[512];
287 u16 size = 512;
288
289 usb_write8(padapter, REG_TDECTRL+1, txpktbuf_bndy);
290 memset(physical_map, 0xFF, 512);
291 usb_write8(padapter, REG_PKT_BUFF_ACCESS_CTRL, TXPKT_BUF_SELECT);
292 status = iol_execute(padapter, CMD_READ_EFUSE_MAP);
293 if (status == _SUCCESS)
294 efuse_read_phymap_from_txpktbuf(padapter, txpktbuf_bndy, physical_map, &size);
295 efuse_phymap_to_logical(physical_map, offset, size_byte, logical_map);
296 return status;
297 }
298
efuse_ReadEFuse(struct adapter * Adapter,u8 efuseType,u16 _offset,u16 _size_byte,u8 * pbuf)299 void efuse_ReadEFuse(struct adapter *Adapter, u8 efuseType, u16 _offset, u16 _size_byte, u8 *pbuf)
300 {
301 if (rtw_iol_applied(Adapter)) {
302 rtw_hal_power_on(Adapter);
303 iol_mode_enable(Adapter, 1);
304 iol_read_efuse(Adapter, 0, _offset, _size_byte, pbuf);
305 iol_mode_enable(Adapter, 0);
306 }
307 }
308
Efuse_WordEnableDataWrite(struct adapter * pAdapter,u16 efuse_addr,u8 word_en,u8 * data)309 u8 Efuse_WordEnableDataWrite(struct adapter *pAdapter, u16 efuse_addr, u8 word_en, u8 *data)
310 {
311 u16 tmpaddr = 0;
312 u16 start_addr = efuse_addr;
313 u8 badworden = 0x0F;
314 u8 tmpdata[8];
315
316 memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
317
318 if (!(word_en & BIT(0))) {
319 tmpaddr = start_addr;
320 efuse_OneByteWrite(pAdapter, start_addr++, data[0]);
321 efuse_OneByteWrite(pAdapter, start_addr++, data[1]);
322
323 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[0]);
324 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[1]);
325 if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
326 badworden &= (~BIT(0));
327 }
328 if (!(word_en & BIT(1))) {
329 tmpaddr = start_addr;
330 efuse_OneByteWrite(pAdapter, start_addr++, data[2]);
331 efuse_OneByteWrite(pAdapter, start_addr++, data[3]);
332
333 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[2]);
334 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[3]);
335 if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
336 badworden &= (~BIT(1));
337 }
338 if (!(word_en & BIT(2))) {
339 tmpaddr = start_addr;
340 efuse_OneByteWrite(pAdapter, start_addr++, data[4]);
341 efuse_OneByteWrite(pAdapter, start_addr++, data[5]);
342
343 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[4]);
344 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[5]);
345 if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
346 badworden &= (~BIT(2));
347 }
348 if (!(word_en & BIT(3))) {
349 tmpaddr = start_addr;
350 efuse_OneByteWrite(pAdapter, start_addr++, data[6]);
351 efuse_OneByteWrite(pAdapter, start_addr++, data[7]);
352
353 efuse_OneByteRead(pAdapter, tmpaddr, &tmpdata[6]);
354 efuse_OneByteRead(pAdapter, tmpaddr+1, &tmpdata[7]);
355 if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
356 badworden &= (~BIT(3));
357 }
358 return badworden;
359 }
360
Efuse_GetCurrentSize(struct adapter * pAdapter)361 static u16 Efuse_GetCurrentSize(struct adapter *pAdapter)
362 {
363 int bContinual = true;
364 u16 efuse_addr = 0;
365 u8 hoffset = 0, hworden = 0;
366 u8 efuse_data, word_cnts = 0;
367
368 rtw_hal_get_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
369
370 while (bContinual &&
371 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 bContinual = false;
394 }
395 }
396
397 rtw_hal_set_hwreg(pAdapter, HW_VAR_EFUSE_BYTES, (u8 *)&efuse_addr);
398
399 return efuse_addr;
400 }
401
Efuse_PgPacketRead(struct adapter * pAdapter,u8 offset,u8 * data)402 int 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 == false) {
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
hal_EfuseFixHeaderProcess(struct adapter * pAdapter,u8 efuseType,struct pgpkt * pFixPkt,u16 * pAddr)484 static 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
hal_EfusePgPacketWrite2ByteHeader(struct adapter * pAdapter,u8 efuseType,u16 * pAddr,struct pgpkt * pTargetPkt)513 static bool hal_EfusePgPacketWrite2ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
514 {
515 bool bRet = 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 bRet = 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 bRet;
578 }
579
hal_EfusePgPacketWrite1ByteHeader(struct adapter * pAdapter,u8 efuseType,u16 * pAddr,struct pgpkt * pTargetPkt)580 static bool hal_EfusePgPacketWrite1ByteHeader(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
581 {
582 bool bRet = 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 bRet = 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 bRet;
613 }
614
hal_EfusePgPacketWriteData(struct adapter * pAdapter,u8 efuseType,u16 * pAddr,struct pgpkt * pTargetPkt)615 static 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
635 static bool
hal_EfusePgPacketWriteHeader(struct adapter * pAdapter,u8 efuseType,u16 * pAddr,struct pgpkt * pTargetPkt)636 hal_EfusePgPacketWriteHeader(
637 struct adapter *pAdapter,
638 u8 efuseType,
639 u16 *pAddr,
640 struct pgpkt *pTargetPkt)
641 {
642 bool bRet = false;
643
644 if (pTargetPkt->offset >= EFUSE_MAX_SECTION_BASE)
645 bRet = hal_EfusePgPacketWrite2ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
646 else
647 bRet = hal_EfusePgPacketWrite1ByteHeader(pAdapter, efuseType, pAddr, pTargetPkt);
648
649 return bRet;
650 }
651
wordEnMatched(struct pgpkt * pTargetPkt,struct pgpkt * pCurPkt,u8 * pWden)652 static 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
hal_EfuseCheckIfDatafollowed(struct adapter * pAdapter,u8 word_cnts,u16 startAddr)679 static bool hal_EfuseCheckIfDatafollowed(struct adapter *pAdapter, u8 word_cnts, u16 startAddr)
680 {
681 bool bRet = 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 bRet = true;
687 }
688 return bRet;
689 }
690
hal_EfusePartialWriteCheck(struct adapter * pAdapter,u8 efuseType,u16 * pAddr,struct pgpkt * pTargetPkt)691 static bool hal_EfusePartialWriteCheck(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt)
692 {
693 bool bRet = 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 bRet = 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 bRet = 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 bRet = 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 bRet = true;
760 break;
761 }
762 }
763 return bRet;
764 }
765
766 static bool
hal_EfusePgCheckAvailableAddr(struct adapter * pAdapter,u8 efuseType)767 hal_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
hal_EfuseConstructPGPkt(u8 offset,u8 word_en,u8 * pData,struct pgpkt * pTargetPkt)777 static 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
Efuse_PgPacketWrite(struct adapter * pAdapter,u8 offset,u8 word_en,u8 * pData)786 bool 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
Efuse_CalculateWordCnts(u8 word_en)809 u8 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
efuse_OneByteRead(struct adapter * pAdapter,u16 addr,u8 * data)824 u8 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
efuse_OneByteWrite(struct adapter * pAdapter,u16 addr,u8 data)847 u8 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 /*
872 * Overview: Read allowed word in current efuse section data.
873 */
efuse_WordEnableDataRead(u8 word_en,u8 * sourdata,u8 * targetdata)874 void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata)
875 {
876 if (!(word_en & BIT(0))) {
877 targetdata[0] = sourdata[0];
878 targetdata[1] = sourdata[1];
879 }
880 if (!(word_en & BIT(1))) {
881 targetdata[2] = sourdata[2];
882 targetdata[3] = sourdata[3];
883 }
884 if (!(word_en & BIT(2))) {
885 targetdata[4] = sourdata[4];
886 targetdata[5] = sourdata[5];
887 }
888 if (!(word_en & BIT(3))) {
889 targetdata[6] = sourdata[6];
890 targetdata[7] = sourdata[7];
891 }
892 }
893
894 /*
895 * Overview: Read All Efuse content
896 */
Efuse_ReadAllMap(struct adapter * pAdapter,u8 efuseType,u8 * Efuse)897 static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 efuseType, u8 *Efuse)
898 {
899 efuse_power_switch(pAdapter, false, true);
900
901 efuse_ReadEFuse(pAdapter, efuseType, 0, EFUSE_MAP_LEN_88E, Efuse);
902
903 efuse_power_switch(pAdapter, false, false);
904 }
905
906 /*
907 * Overview: Transfer current EFUSE content to shadow init and modify map.
908 */
EFUSE_ShadowMapUpdate(struct adapter * pAdapter,u8 efuseType)909 void EFUSE_ShadowMapUpdate(
910 struct adapter *pAdapter,
911 u8 efuseType)
912 {
913 struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
914
915 if (pEEPROM->bautoload_fail_flag)
916 memset(pEEPROM->efuse_eeprom_data, 0xFF, EFUSE_MAP_LEN_88E);
917 else
918 Efuse_ReadAllMap(pAdapter, efuseType, pEEPROM->efuse_eeprom_data);
919 }
920
