1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
4 * All rights reserved.
5 *
6 * File: mac.c
7 *
8 * Purpose: MAC routines
9 *
10 * Author: Tevin Chen
11 *
12 * Date: May 21, 1996
13 *
14 * Functions:
15 * MACbIsRegBitsOn - Test if All test Bits On
16 * MACbIsRegBitsOff - Test if All test Bits Off
17 * MACbIsIntDisable - Test if MAC interrupt disable
18 * MACvSetShortRetryLimit - Set 802.11 Short Retry limit
19 * MACvSetLongRetryLimit - Set 802.11 Long Retry limit
20 * MACvSetLoopbackMode - Set MAC Loopback Mode
21 * MACvSaveContext - Save Context of MAC Registers
22 * MACvRestoreContext - Restore Context of MAC Registers
23 * MACbSoftwareReset - Software Reset MAC
24 * MACbSafeRxOff - Turn Off MAC Rx
25 * MACbSafeTxOff - Turn Off MAC Tx
26 * MACbSafeStop - Stop MAC function
27 * MACbShutdown - Shut down MAC
28 * MACvInitialize - Initialize MAC
29 * MACvSetCurrRxDescAddr - Set Rx Descriptors Address
30 * MACvSetCurrTx0DescAddr - Set Tx0 Descriptors Address
31 * MACvSetCurrTx1DescAddr - Set Tx1 Descriptors Address
32 * MACvTimer0MicroSDelay - Micro Second Delay Loop by MAC
33 *
34 * Revision History:
35 * 08-22-2003 Kyle Hsu : Porting MAC functions from sim53
36 * 09-03-2003 Bryan YC Fan : Add MACvClearBusSusInd()&
37 * MACvEnableBusSusEn()
38 * 09-18-2003 Jerry Chen : Add MACvSetKeyEntry & MACvDisableKeyEntry
39 *
40 */
41
42 #include "tmacro.h"
43 #include "mac.h"
44
45 /*
46 * Description:
47 * Test if all test bits on
48 *
49 * Parameters:
50 * In:
51 * io_base - Base Address for MAC
52 * byRegOfs - Offset of MAC Register
53 * byTestBits - Test bits
54 * Out:
55 * none
56 *
57 * Return Value: true if all test bits On; otherwise false
58 *
59 */
MACbIsRegBitsOn(struct vnt_private * priv,unsigned char byRegOfs,unsigned char byTestBits)60 bool MACbIsRegBitsOn(struct vnt_private *priv, unsigned char byRegOfs,
61 unsigned char byTestBits)
62 {
63 void __iomem *io_base = priv->PortOffset;
64
65 return (ioread8(io_base + byRegOfs) & byTestBits) == byTestBits;
66 }
67
68 /*
69 * Description:
70 * Test if all test bits off
71 *
72 * Parameters:
73 * In:
74 * io_base - Base Address for MAC
75 * byRegOfs - Offset of MAC Register
76 * byTestBits - Test bits
77 * Out:
78 * none
79 *
80 * Return Value: true if all test bits Off; otherwise false
81 *
82 */
MACbIsRegBitsOff(struct vnt_private * priv,unsigned char byRegOfs,unsigned char byTestBits)83 bool MACbIsRegBitsOff(struct vnt_private *priv, unsigned char byRegOfs,
84 unsigned char byTestBits)
85 {
86 void __iomem *io_base = priv->PortOffset;
87
88 return !(ioread8(io_base + byRegOfs) & byTestBits);
89 }
90
91 /*
92 * Description:
93 * Test if MAC interrupt disable
94 *
95 * Parameters:
96 * In:
97 * io_base - Base Address for MAC
98 * Out:
99 * none
100 *
101 * Return Value: true if interrupt is disable; otherwise false
102 *
103 */
MACbIsIntDisable(struct vnt_private * priv)104 bool MACbIsIntDisable(struct vnt_private *priv)
105 {
106 void __iomem *io_base = priv->PortOffset;
107
108 if (ioread32(io_base + MAC_REG_IMR))
109 return false;
110
111 return true;
112 }
113
114 /*
115 * Description:
116 * Set 802.11 Short Retry Limit
117 *
118 * Parameters:
119 * In:
120 * io_base - Base Address for MAC
121 * byRetryLimit- Retry Limit
122 * Out:
123 * none
124 *
125 * Return Value: none
126 *
127 */
MACvSetShortRetryLimit(struct vnt_private * priv,unsigned char byRetryLimit)128 void MACvSetShortRetryLimit(struct vnt_private *priv,
129 unsigned char byRetryLimit)
130 {
131 void __iomem *io_base = priv->PortOffset;
132 /* set SRT */
133 iowrite8(byRetryLimit, io_base + MAC_REG_SRT);
134 }
135
136 /*
137 * Description:
138 * Set 802.11 Long Retry Limit
139 *
140 * Parameters:
141 * In:
142 * io_base - Base Address for MAC
143 * byRetryLimit- Retry Limit
144 * Out:
145 * none
146 *
147 * Return Value: none
148 *
149 */
MACvSetLongRetryLimit(struct vnt_private * priv,unsigned char byRetryLimit)150 void MACvSetLongRetryLimit(struct vnt_private *priv,
151 unsigned char byRetryLimit)
152 {
153 void __iomem *io_base = priv->PortOffset;
154 /* set LRT */
155 iowrite8(byRetryLimit, io_base + MAC_REG_LRT);
156 }
157
158 /*
159 * Description:
160 * Set MAC Loopback mode
161 *
162 * Parameters:
163 * In:
164 * io_base - Base Address for MAC
165 * byLoopbackMode - Loopback Mode
166 * Out:
167 * none
168 *
169 * Return Value: none
170 *
171 */
MACvSetLoopbackMode(struct vnt_private * priv,unsigned char byLoopbackMode)172 void MACvSetLoopbackMode(struct vnt_private *priv, unsigned char byLoopbackMode)
173 {
174 void __iomem *io_base = priv->PortOffset;
175
176 byLoopbackMode <<= 6;
177 /* set TCR */
178 iowrite8((ioread8(io_base + MAC_REG_TEST) & 0x3f) | byLoopbackMode,
179 io_base + MAC_REG_TEST);
180 }
181
182 /*
183 * Description:
184 * Save MAC registers to context buffer
185 *
186 * Parameters:
187 * In:
188 * io_base - Base Address for MAC
189 * Out:
190 * cxt_buf - Context buffer
191 *
192 * Return Value: none
193 *
194 */
MACvSaveContext(struct vnt_private * priv,unsigned char * cxt_buf)195 void MACvSaveContext(struct vnt_private *priv, unsigned char *cxt_buf)
196 {
197 void __iomem *io_base = priv->PortOffset;
198
199 /* read page0 register */
200 memcpy_fromio(cxt_buf, io_base, MAC_MAX_CONTEXT_SIZE_PAGE0);
201
202 MACvSelectPage1(io_base);
203
204 /* read page1 register */
205 memcpy_fromio(cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0, io_base,
206 MAC_MAX_CONTEXT_SIZE_PAGE1);
207
208 MACvSelectPage0(io_base);
209 }
210
211 /*
212 * Description:
213 * Restore MAC registers from context buffer
214 *
215 * Parameters:
216 * In:
217 * io_base - Base Address for MAC
218 * cxt_buf - Context buffer
219 * Out:
220 * none
221 *
222 * Return Value: none
223 *
224 */
MACvRestoreContext(struct vnt_private * priv,unsigned char * cxt_buf)225 void MACvRestoreContext(struct vnt_private *priv, unsigned char *cxt_buf)
226 {
227 void __iomem *io_base = priv->PortOffset;
228
229 MACvSelectPage1(io_base);
230 /* restore page1 */
231 memcpy_toio(io_base, cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0,
232 MAC_MAX_CONTEXT_SIZE_PAGE1);
233
234 MACvSelectPage0(io_base);
235
236 /* restore RCR,TCR,IMR... */
237 memcpy_toio(io_base + MAC_REG_RCR, cxt_buf + MAC_REG_RCR,
238 MAC_REG_ISR - MAC_REG_RCR);
239
240 /* restore MAC Config. */
241 memcpy_toio(io_base + MAC_REG_LRT, cxt_buf + MAC_REG_LRT,
242 MAC_REG_PAGE1SEL - MAC_REG_LRT);
243
244 iowrite8(*(cxt_buf + MAC_REG_CFG), io_base + MAC_REG_CFG);
245
246 /* restore PS Config. */
247 memcpy_toio(io_base + MAC_REG_PSCFG, cxt_buf + MAC_REG_PSCFG,
248 MAC_REG_BBREGCTL - MAC_REG_PSCFG);
249
250 /* restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR */
251 iowrite32(*(u32 *)(cxt_buf + MAC_REG_TXDMAPTR0),
252 io_base + MAC_REG_TXDMAPTR0);
253 iowrite32(*(u32 *)(cxt_buf + MAC_REG_AC0DMAPTR),
254 io_base + MAC_REG_AC0DMAPTR);
255 iowrite32(*(u32 *)(cxt_buf + MAC_REG_BCNDMAPTR),
256 io_base + MAC_REG_BCNDMAPTR);
257 iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR0),
258 io_base + MAC_REG_RXDMAPTR0);
259 iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR1),
260 io_base + MAC_REG_RXDMAPTR1);
261 }
262
263 /*
264 * Description:
265 * Software Reset MAC
266 *
267 * Parameters:
268 * In:
269 * io_base - Base Address for MAC
270 * Out:
271 * none
272 *
273 * Return Value: true if Reset Success; otherwise false
274 *
275 */
MACbSoftwareReset(struct vnt_private * priv)276 bool MACbSoftwareReset(struct vnt_private *priv)
277 {
278 void __iomem *io_base = priv->PortOffset;
279 unsigned short ww;
280
281 /* turn on HOSTCR_SOFTRST, just write 0x01 to reset */
282 iowrite8(0x01, io_base + MAC_REG_HOSTCR);
283
284 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
285 if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_SOFTRST))
286 break;
287 }
288 if (ww == W_MAX_TIMEOUT)
289 return false;
290 return true;
291 }
292
293 /*
294 * Description:
295 * save some important register's value, then do reset, then restore
296 * register's value
297 *
298 * Parameters:
299 * In:
300 * io_base - Base Address for MAC
301 * Out:
302 * none
303 *
304 * Return Value: true if success; otherwise false
305 *
306 */
MACbSafeSoftwareReset(struct vnt_private * priv)307 bool MACbSafeSoftwareReset(struct vnt_private *priv)
308 {
309 unsigned char abyTmpRegData[MAC_MAX_CONTEXT_SIZE_PAGE0 + MAC_MAX_CONTEXT_SIZE_PAGE1];
310 bool bRetVal;
311
312 /* PATCH....
313 * save some important register's value, then do
314 * reset, then restore register's value
315 */
316 /* save MAC context */
317 MACvSaveContext(priv, abyTmpRegData);
318 /* do reset */
319 bRetVal = MACbSoftwareReset(priv);
320 /* restore MAC context, except CR0 */
321 MACvRestoreContext(priv, abyTmpRegData);
322
323 return bRetVal;
324 }
325
326 /*
327 * Description:
328 * Turn Off MAC Rx
329 *
330 * Parameters:
331 * In:
332 * io_base - Base Address for MAC
333 * Out:
334 * none
335 *
336 * Return Value: true if success; otherwise false
337 *
338 */
MACbSafeRxOff(struct vnt_private * priv)339 bool MACbSafeRxOff(struct vnt_private *priv)
340 {
341 void __iomem *io_base = priv->PortOffset;
342 unsigned short ww;
343
344 /* turn off wow temp for turn off Rx safely */
345
346 /* Clear RX DMA0,1 */
347 iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_RXDMACTL0);
348 iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_RXDMACTL1);
349 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
350 if (!(ioread32(io_base + MAC_REG_RXDMACTL0) & DMACTL_RUN))
351 break;
352 }
353 if (ww == W_MAX_TIMEOUT) {
354 pr_debug(" DBG_PORT80(0x10)\n");
355 return false;
356 }
357 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
358 if (!(ioread32(io_base + MAC_REG_RXDMACTL1) & DMACTL_RUN))
359 break;
360 }
361 if (ww == W_MAX_TIMEOUT) {
362 pr_debug(" DBG_PORT80(0x11)\n");
363 return false;
364 }
365
366 /* try to safe shutdown RX */
367 MACvRegBitsOff(io_base, MAC_REG_HOSTCR, HOSTCR_RXON);
368 /* W_MAX_TIMEOUT is the timeout period */
369 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
370 if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_RXONST))
371 break;
372 }
373 if (ww == W_MAX_TIMEOUT) {
374 pr_debug(" DBG_PORT80(0x12)\n");
375 return false;
376 }
377 return true;
378 }
379
380 /*
381 * Description:
382 * Turn Off MAC Tx
383 *
384 * Parameters:
385 * In:
386 * io_base - Base Address for MAC
387 * Out:
388 * none
389 *
390 * Return Value: true if success; otherwise false
391 *
392 */
MACbSafeTxOff(struct vnt_private * priv)393 bool MACbSafeTxOff(struct vnt_private *priv)
394 {
395 void __iomem *io_base = priv->PortOffset;
396 unsigned short ww;
397
398 /* Clear TX DMA */
399 /* Tx0 */
400 iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_TXDMACTL0);
401 /* AC0 */
402 iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_AC0DMACTL);
403
404 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
405 if (!(ioread32(io_base + MAC_REG_TXDMACTL0) & DMACTL_RUN))
406 break;
407 }
408 if (ww == W_MAX_TIMEOUT) {
409 pr_debug(" DBG_PORT80(0x20)\n");
410 return false;
411 }
412 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
413 if (!(ioread32(io_base + MAC_REG_AC0DMACTL) & DMACTL_RUN))
414 break;
415 }
416 if (ww == W_MAX_TIMEOUT) {
417 pr_debug(" DBG_PORT80(0x21)\n");
418 return false;
419 }
420
421 /* try to safe shutdown TX */
422 MACvRegBitsOff(io_base, MAC_REG_HOSTCR, HOSTCR_TXON);
423
424 /* W_MAX_TIMEOUT is the timeout period */
425 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
426 if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_TXONST))
427 break;
428 }
429 if (ww == W_MAX_TIMEOUT) {
430 pr_debug(" DBG_PORT80(0x24)\n");
431 return false;
432 }
433 return true;
434 }
435
436 /*
437 * Description:
438 * Stop MAC function
439 *
440 * Parameters:
441 * In:
442 * io_base - Base Address for MAC
443 * Out:
444 * none
445 *
446 * Return Value: true if success; otherwise false
447 *
448 */
MACbSafeStop(struct vnt_private * priv)449 bool MACbSafeStop(struct vnt_private *priv)
450 {
451 void __iomem *io_base = priv->PortOffset;
452
453 MACvRegBitsOff(io_base, MAC_REG_TCR, TCR_AUTOBCNTX);
454
455 if (!MACbSafeRxOff(priv)) {
456 pr_debug(" MACbSafeRxOff == false)\n");
457 MACbSafeSoftwareReset(priv);
458 return false;
459 }
460 if (!MACbSafeTxOff(priv)) {
461 pr_debug(" MACbSafeTxOff == false)\n");
462 MACbSafeSoftwareReset(priv);
463 return false;
464 }
465
466 MACvRegBitsOff(io_base, MAC_REG_HOSTCR, HOSTCR_MACEN);
467
468 return true;
469 }
470
471 /*
472 * Description:
473 * Shut Down MAC
474 *
475 * Parameters:
476 * In:
477 * io_base - Base Address for MAC
478 * Out:
479 * none
480 *
481 * Return Value: true if success; otherwise false
482 *
483 */
MACbShutdown(struct vnt_private * priv)484 bool MACbShutdown(struct vnt_private *priv)
485 {
486 void __iomem *io_base = priv->PortOffset;
487 /* disable MAC IMR */
488 MACvIntDisable(io_base);
489 MACvSetLoopbackMode(priv, MAC_LB_INTERNAL);
490 /* stop the adapter */
491 if (!MACbSafeStop(priv)) {
492 MACvSetLoopbackMode(priv, MAC_LB_NONE);
493 return false;
494 }
495 MACvSetLoopbackMode(priv, MAC_LB_NONE);
496 return true;
497 }
498
499 /*
500 * Description:
501 * Initialize MAC
502 *
503 * Parameters:
504 * In:
505 * io_base - Base Address for MAC
506 * Out:
507 * none
508 *
509 * Return Value: none
510 *
511 */
MACvInitialize(struct vnt_private * priv)512 void MACvInitialize(struct vnt_private *priv)
513 {
514 void __iomem *io_base = priv->PortOffset;
515 /* clear sticky bits */
516 MACvClearStckDS(io_base);
517 /* disable force PME-enable */
518 iowrite8(PME_OVR, io_base + MAC_REG_PMC1);
519 /* only 3253 A */
520
521 /* do reset */
522 MACbSoftwareReset(priv);
523
524 /* reset TSF counter */
525 iowrite8(TFTCTL_TSFCNTRST, io_base + MAC_REG_TFTCTL);
526 /* enable TSF counter */
527 iowrite8(TFTCTL_TSFCNTREN, io_base + MAC_REG_TFTCTL);
528 }
529
530 /*
531 * Description:
532 * Set the chip with current rx descriptor address
533 *
534 * Parameters:
535 * In:
536 * io_base - Base Address for MAC
537 * curr_desc_addr - Descriptor Address
538 * Out:
539 * none
540 *
541 * Return Value: none
542 *
543 */
MACvSetCurrRx0DescAddr(struct vnt_private * priv,u32 curr_desc_addr)544 void MACvSetCurrRx0DescAddr(struct vnt_private *priv, u32 curr_desc_addr)
545 {
546 void __iomem *io_base = priv->PortOffset;
547 unsigned short ww;
548 unsigned char org_dma_ctl;
549
550 org_dma_ctl = ioread8(io_base + MAC_REG_RXDMACTL0);
551 if (org_dma_ctl & DMACTL_RUN)
552 iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL0 + 2);
553
554 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
555 if (!(ioread8(io_base + MAC_REG_RXDMACTL0) & DMACTL_RUN))
556 break;
557 }
558
559 iowrite32(curr_desc_addr, io_base + MAC_REG_RXDMAPTR0);
560 if (org_dma_ctl & DMACTL_RUN)
561 iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL0);
562 }
563
564 /*
565 * Description:
566 * Set the chip with current rx descriptor address
567 *
568 * Parameters:
569 * In:
570 * io_base - Base Address for MAC
571 * curr_desc_addr - Descriptor Address
572 * Out:
573 * none
574 *
575 * Return Value: none
576 *
577 */
MACvSetCurrRx1DescAddr(struct vnt_private * priv,u32 curr_desc_addr)578 void MACvSetCurrRx1DescAddr(struct vnt_private *priv, u32 curr_desc_addr)
579 {
580 void __iomem *io_base = priv->PortOffset;
581 unsigned short ww;
582 unsigned char org_dma_ctl;
583
584 org_dma_ctl = ioread8(io_base + MAC_REG_RXDMACTL1);
585 if (org_dma_ctl & DMACTL_RUN)
586 iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL1 + 2);
587
588 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
589 if (!(ioread8(io_base + MAC_REG_RXDMACTL1) & DMACTL_RUN))
590 break;
591 }
592
593 iowrite32(curr_desc_addr, io_base + MAC_REG_RXDMAPTR1);
594 if (org_dma_ctl & DMACTL_RUN)
595 iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL1);
596
597 }
598
599 /*
600 * Description:
601 * Set the chip with current tx0 descriptor address
602 *
603 * Parameters:
604 * In:
605 * io_base - Base Address for MAC
606 * curr_desc_addr - Descriptor Address
607 * Out:
608 * none
609 *
610 * Return Value: none
611 *
612 */
MACvSetCurrTx0DescAddrEx(struct vnt_private * priv,u32 curr_desc_addr)613 void MACvSetCurrTx0DescAddrEx(struct vnt_private *priv,
614 u32 curr_desc_addr)
615 {
616 void __iomem *io_base = priv->PortOffset;
617 unsigned short ww;
618 unsigned char org_dma_ctl;
619
620 org_dma_ctl = ioread8(io_base + MAC_REG_TXDMACTL0);
621 if (org_dma_ctl & DMACTL_RUN)
622 iowrite8(DMACTL_RUN, io_base + MAC_REG_TXDMACTL0 + 2);
623
624 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
625 if (!(ioread8(io_base + MAC_REG_TXDMACTL0) & DMACTL_RUN))
626 break;
627 }
628
629 iowrite32(curr_desc_addr, io_base + MAC_REG_TXDMAPTR0);
630 if (org_dma_ctl & DMACTL_RUN)
631 iowrite8(DMACTL_RUN, io_base + MAC_REG_TXDMACTL0);
632 }
633
634 /*
635 * Description:
636 * Set the chip with current AC0 descriptor address
637 *
638 * Parameters:
639 * In:
640 * io_base - Base Address for MAC
641 * curr_desc_addr - Descriptor Address
642 * Out:
643 * none
644 *
645 * Return Value: none
646 *
647 */
648 /* TxDMA1 = AC0DMA */
MACvSetCurrAC0DescAddrEx(struct vnt_private * priv,u32 curr_desc_addr)649 void MACvSetCurrAC0DescAddrEx(struct vnt_private *priv,
650 u32 curr_desc_addr)
651 {
652 void __iomem *io_base = priv->PortOffset;
653 unsigned short ww;
654 unsigned char org_dma_ctl;
655
656 org_dma_ctl = ioread8(io_base + MAC_REG_AC0DMACTL);
657 if (org_dma_ctl & DMACTL_RUN)
658 iowrite8(DMACTL_RUN, io_base + MAC_REG_AC0DMACTL + 2);
659
660 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
661 if (!(ioread8(io_base + MAC_REG_AC0DMACTL) & DMACTL_RUN))
662 break;
663 }
664 if (ww == W_MAX_TIMEOUT)
665 pr_debug(" DBG_PORT80(0x26)\n");
666 iowrite32(curr_desc_addr, io_base + MAC_REG_AC0DMAPTR);
667 if (org_dma_ctl & DMACTL_RUN)
668 iowrite8(DMACTL_RUN, io_base + MAC_REG_AC0DMACTL);
669 }
670
MACvSetCurrTXDescAddr(int iTxType,struct vnt_private * priv,u32 curr_desc_addr)671 void MACvSetCurrTXDescAddr(int iTxType, struct vnt_private *priv,
672 u32 curr_desc_addr)
673 {
674 if (iTxType == TYPE_AC0DMA)
675 MACvSetCurrAC0DescAddrEx(priv, curr_desc_addr);
676 else if (iTxType == TYPE_TXDMA0)
677 MACvSetCurrTx0DescAddrEx(priv, curr_desc_addr);
678 }
679
680 /*
681 * Description:
682 * Micro Second Delay via MAC
683 *
684 * Parameters:
685 * In:
686 * io_base - Base Address for MAC
687 * uDelay - Delay time (timer resolution is 4 us)
688 * Out:
689 * none
690 *
691 * Return Value: none
692 *
693 */
MACvTimer0MicroSDelay(struct vnt_private * priv,unsigned int uDelay)694 void MACvTimer0MicroSDelay(struct vnt_private *priv, unsigned int uDelay)
695 {
696 void __iomem *io_base = priv->PortOffset;
697 unsigned char byValue;
698 unsigned int uu, ii;
699
700 iowrite8(0, io_base + MAC_REG_TMCTL0);
701 iowrite32(uDelay, io_base + MAC_REG_TMDATA0);
702 iowrite8((TMCTL_TMD | TMCTL_TE), io_base + MAC_REG_TMCTL0);
703 for (ii = 0; ii < 66; ii++) { /* assume max PCI clock is 66Mhz */
704 for (uu = 0; uu < uDelay; uu++) {
705 byValue = ioread8(io_base + MAC_REG_TMCTL0);
706 if ((byValue == 0) ||
707 (byValue & TMCTL_TSUSP)) {
708 iowrite8(0, io_base + MAC_REG_TMCTL0);
709 return;
710 }
711 }
712 }
713 iowrite8(0, io_base + MAC_REG_TMCTL0);
714 }
715
716 /*
717 * Description:
718 * Micro Second One shot timer via MAC
719 *
720 * Parameters:
721 * In:
722 * io_base - Base Address for MAC
723 * uDelay - Delay time
724 * Out:
725 * none
726 *
727 * Return Value: none
728 *
729 */
MACvOneShotTimer1MicroSec(struct vnt_private * priv,unsigned int uDelayTime)730 void MACvOneShotTimer1MicroSec(struct vnt_private *priv,
731 unsigned int uDelayTime)
732 {
733 void __iomem *io_base = priv->PortOffset;
734
735 iowrite8(0, io_base + MAC_REG_TMCTL1);
736 iowrite32(uDelayTime, io_base + MAC_REG_TMDATA1);
737 iowrite8((TMCTL_TMD | TMCTL_TE), io_base + MAC_REG_TMCTL1);
738 }
739
MACvSetMISCFifo(struct vnt_private * priv,unsigned short offset,u32 data)740 void MACvSetMISCFifo(struct vnt_private *priv, unsigned short offset,
741 u32 data)
742 {
743 void __iomem *io_base = priv->PortOffset;
744
745 if (offset > 273)
746 return;
747 iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
748 iowrite32(data, io_base + MAC_REG_MISCFFDATA);
749 iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
750 }
751
MACbPSWakeup(struct vnt_private * priv)752 bool MACbPSWakeup(struct vnt_private *priv)
753 {
754 void __iomem *io_base = priv->PortOffset;
755 unsigned int ww;
756 /* Read PSCTL */
757 if (MACbIsRegBitsOff(priv, MAC_REG_PSCTL, PSCTL_PS))
758 return true;
759
760 /* Disable PS */
761 MACvRegBitsOff(io_base, MAC_REG_PSCTL, PSCTL_PSEN);
762
763 /* Check if SyncFlushOK */
764 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
765 if (ioread8(io_base + MAC_REG_PSCTL) & PSCTL_WAKEDONE)
766 break;
767 }
768 if (ww == W_MAX_TIMEOUT) {
769 pr_debug(" DBG_PORT80(0x33)\n");
770 return false;
771 }
772 return true;
773 }
774
775 /*
776 * Description:
777 * Set the Key by MISCFIFO
778 *
779 * Parameters:
780 * In:
781 * io_base - Base Address for MAC
782 *
783 * Out:
784 * none
785 *
786 * Return Value: none
787 *
788 */
789
MACvSetKeyEntry(struct vnt_private * priv,unsigned short wKeyCtl,unsigned int uEntryIdx,unsigned int uKeyIdx,unsigned char * pbyAddr,u32 * pdwKey,unsigned char byLocalID)790 void MACvSetKeyEntry(struct vnt_private *priv, unsigned short wKeyCtl,
791 unsigned int uEntryIdx, unsigned int uKeyIdx,
792 unsigned char *pbyAddr, u32 *pdwKey,
793 unsigned char byLocalID)
794 {
795 void __iomem *io_base = priv->PortOffset;
796 unsigned short offset;
797 u32 data;
798 int ii;
799
800 if (byLocalID <= 1)
801 return;
802
803 pr_debug("%s\n", __func__);
804 offset = MISCFIFO_KEYETRY0;
805 offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);
806
807 data = 0;
808 data |= wKeyCtl;
809 data <<= 16;
810 data |= MAKEWORD(*(pbyAddr + 4), *(pbyAddr + 5));
811 pr_debug("1. offset: %d, Data: %X, KeyCtl:%X\n",
812 offset, data, wKeyCtl);
813
814 iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
815 iowrite32(data, io_base + MAC_REG_MISCFFDATA);
816 iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
817 offset++;
818
819 data = 0;
820 data |= *(pbyAddr + 3);
821 data <<= 8;
822 data |= *(pbyAddr + 2);
823 data <<= 8;
824 data |= *(pbyAddr + 1);
825 data <<= 8;
826 data |= *pbyAddr;
827 pr_debug("2. offset: %d, Data: %X\n", offset, data);
828
829 iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
830 iowrite32(data, io_base + MAC_REG_MISCFFDATA);
831 iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
832 offset++;
833
834 offset += (uKeyIdx * 4);
835 for (ii = 0; ii < 4; ii++) {
836 /* always push 128 bits */
837 pr_debug("3.(%d) offset: %d, Data: %X\n",
838 ii, offset + ii, *pdwKey);
839 iowrite16(offset + ii, io_base + MAC_REG_MISCFFNDEX);
840 iowrite32(*pdwKey++, io_base + MAC_REG_MISCFFDATA);
841 iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
842 }
843 }
844
845 /*
846 * Description:
847 * Disable the Key Entry by MISCFIFO
848 *
849 * Parameters:
850 * In:
851 * io_base - Base Address for MAC
852 *
853 * Out:
854 * none
855 *
856 * Return Value: none
857 *
858 */
MACvDisableKeyEntry(struct vnt_private * priv,unsigned int uEntryIdx)859 void MACvDisableKeyEntry(struct vnt_private *priv, unsigned int uEntryIdx)
860 {
861 void __iomem *io_base = priv->PortOffset;
862 unsigned short offset;
863
864 offset = MISCFIFO_KEYETRY0;
865 offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);
866
867 iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
868 iowrite32(0, io_base + MAC_REG_MISCFFDATA);
869 iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
870 }
871
