1 /*
2 * Agere Systems Inc.
3 * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
4 *
5 * Copyright © 2005 Agere Systems Inc.
6 * All rights reserved.
7 * http://www.agere.com
8 *
9 *------------------------------------------------------------------------------
10 *
11 * et1310_phy.c - Routines for configuring and accessing the PHY
12 *
13 *------------------------------------------------------------------------------
14 *
15 * SOFTWARE LICENSE
16 *
17 * This software is provided subject to the following terms and conditions,
18 * which you should read carefully before using the software. Using this
19 * software indicates your acceptance of these terms and conditions. If you do
20 * not agree with these terms and conditions, do not use the software.
21 *
22 * Copyright © 2005 Agere Systems Inc.
23 * All rights reserved.
24 *
25 * Redistribution and use in source or binary forms, with or without
26 * modifications, are permitted provided that the following conditions are met:
27 *
28 * . Redistributions of source code must retain the above copyright notice, this
29 * list of conditions and the following Disclaimer as comments in the code as
30 * well as in the documentation and/or other materials provided with the
31 * distribution.
32 *
33 * . Redistributions in binary form must reproduce the above copyright notice,
34 * this list of conditions and the following Disclaimer in the documentation
35 * and/or other materials provided with the distribution.
36 *
37 * . Neither the name of Agere Systems Inc. nor the names of the contributors
38 * may be used to endorse or promote products derived from this software
39 * without specific prior written permission.
40 *
41 * Disclaimer
42 *
43 * THIS SOFTWARE IS PROVIDED “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES,
44 * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
45 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
46 * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
47 * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
48 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
49 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
50 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
51 * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
53 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
54 * DAMAGE.
55 *
56 */
57
58 #include "et131x_version.h"
59 #include "et131x_debug.h"
60 #include "et131x_defs.h"
61
62 #include <linux/pci.h>
63 #include <linux/init.h>
64 #include <linux/module.h>
65 #include <linux/types.h>
66 #include <linux/kernel.h>
67
68 #include <linux/sched.h>
69 #include <linux/ptrace.h>
70 #include <linux/slab.h>
71 #include <linux/ctype.h>
72 #include <linux/string.h>
73 #include <linux/timer.h>
74 #include <linux/interrupt.h>
75 #include <linux/in.h>
76 #include <linux/delay.h>
77 #include <asm/io.h>
78 #include <asm/system.h>
79 #include <asm/bitops.h>
80
81 #include <linux/netdevice.h>
82 #include <linux/etherdevice.h>
83 #include <linux/skbuff.h>
84 #include <linux/if_arp.h>
85 #include <linux/ioport.h>
86 #include <linux/random.h>
87
88 #include "et1310_phy.h"
89 #include "et1310_pm.h"
90 #include "et1310_jagcore.h"
91
92 #include "et131x_adapter.h"
93 #include "et131x_netdev.h"
94 #include "et131x_initpci.h"
95
96 #include "et1310_address_map.h"
97 #include "et1310_tx.h"
98 #include "et1310_rx.h"
99 #include "et1310_mac.h"
100
101 /* Data for debugging facilities */
102 #ifdef CONFIG_ET131X_DEBUG
103 extern dbg_info_t *et131x_dbginfo;
104 #endif /* CONFIG_ET131X_DEBUG */
105
106 /* Prototypes for functions with local scope */
107 static int et131x_xcvr_init(struct et131x_adapter *adapter);
108
109 /**
110 * PhyMiRead - Read from the PHY through the MII Interface on the MAC
111 * @adapter: pointer to our private adapter structure
112 * @xcvrAddr: the address of the transciever
113 * @xcvrReg: the register to read
114 * @value: pointer to a 16-bit value in which the value will be stored
115 *
116 * Returns 0 on success, errno on failure (as defined in errno.h)
117 */
118 int PhyMiRead(struct et131x_adapter *adapter, uint8_t xcvrAddr,
119 uint8_t xcvrReg, uint16_t *value)
120 {
121 struct _MAC_t __iomem *mac = &adapter->CSRAddress->mac;
122 int status = 0;
123 uint32_t delay;
124 MII_MGMT_ADDR_t miiAddr;
125 MII_MGMT_CMD_t miiCmd;
126 MII_MGMT_INDICATOR_t miiIndicator;
127
128 /* Save a local copy of the registers we are dealing with so we can
129 * set them back
130 */
131 miiAddr.value = readl(&mac->mii_mgmt_addr.value);
132 miiCmd.value = readl(&mac->mii_mgmt_cmd.value);
133
134 /* Stop the current operation */
135 writel(0, &mac->mii_mgmt_cmd.value);
136
137 /* Set up the register we need to read from on the correct PHY */
138 {
139 MII_MGMT_ADDR_t mii_mgmt_addr = { 0 };
140
141 mii_mgmt_addr.bits.phy_addr = xcvrAddr;
142 mii_mgmt_addr.bits.reg_addr = xcvrReg;
143 writel(mii_mgmt_addr.value, &mac->mii_mgmt_addr.value);
144 }
145
146 /* Kick the read cycle off */
147 delay = 0;
148
149 writel(0x1, &mac->mii_mgmt_cmd.value);
150
151 do {
152 udelay(50);
153 delay++;
154 miiIndicator.value = readl(&mac->mii_mgmt_indicator.value);
155 } while ((miiIndicator.bits.not_valid || miiIndicator.bits.busy) &&
156 delay < 50);
157
158 /* If we hit the max delay, we could not read the register */
159 if (delay >= 50) {
160 DBG_WARNING(et131x_dbginfo,
161 "xcvrReg 0x%08x could not be read\n", xcvrReg);
162 DBG_WARNING(et131x_dbginfo, "status is 0x%08x\n",
163 miiIndicator.value);
164
165 status = -EIO;
166 }
167
168 /* If we hit here we were able to read the register and we need to
169 * return the value to the caller
170 */
171 /* TODO: make this stuff a simple readw()?! */
172 {
173 MII_MGMT_STAT_t mii_mgmt_stat;
174
175 mii_mgmt_stat.value = readl(&mac->mii_mgmt_stat.value);
176 *value = (uint16_t) mii_mgmt_stat.bits.phy_stat;
177 }
178
179 /* Stop the read operation */
180 writel(0, &mac->mii_mgmt_cmd.value);
181
182 DBG_VERBOSE(et131x_dbginfo, " xcvr_addr = 0x%02x, "
183 "xcvr_reg = 0x%02x, "
184 "value = 0x%04x.\n", xcvrAddr, xcvrReg, *value);
185
186 /* set the registers we touched back to the state at which we entered
187 * this function
188 */
189 writel(miiAddr.value, &mac->mii_mgmt_addr.value);
190 writel(miiCmd.value, &mac->mii_mgmt_cmd.value);
191
192 return status;
193 }
194
195 /**
196 * MiWrite - Write to a PHY register through the MII interface of the MAC
197 * @adapter: pointer to our private adapter structure
198 * @xcvrReg: the register to read
199 * @value: 16-bit value to write
200 *
201 * Return 0 on success, errno on failure (as defined in errno.h)
202 */
203 int MiWrite(struct et131x_adapter *adapter, uint8_t xcvrReg, uint16_t value)
204 {
205 struct _MAC_t __iomem *mac = &adapter->CSRAddress->mac;
206 int status = 0;
207 uint8_t xcvrAddr = adapter->Stats.xcvr_addr;
208 uint32_t delay;
209 MII_MGMT_ADDR_t miiAddr;
210 MII_MGMT_CMD_t miiCmd;
211 MII_MGMT_INDICATOR_t miiIndicator;
212
213 /* Save a local copy of the registers we are dealing with so we can
214 * set them back
215 */
216 miiAddr.value = readl(&mac->mii_mgmt_addr.value);
217 miiCmd.value = readl(&mac->mii_mgmt_cmd.value);
218
219 /* Stop the current operation */
220 writel(0, &mac->mii_mgmt_cmd.value);
221
222 /* Set up the register we need to write to on the correct PHY */
223 {
224 MII_MGMT_ADDR_t mii_mgmt_addr;
225
226 mii_mgmt_addr.bits.phy_addr = xcvrAddr;
227 mii_mgmt_addr.bits.reg_addr = xcvrReg;
228 writel(mii_mgmt_addr.value, &mac->mii_mgmt_addr.value);
229 }
230
231 /* Add the value to write to the registers to the mac */
232 writel(value, &mac->mii_mgmt_ctrl.value);
233 delay = 0;
234
235 do {
236 udelay(50);
237 delay++;
238 miiIndicator.value = readl(&mac->mii_mgmt_indicator.value);
239 } while (miiIndicator.bits.busy && delay < 100);
240
241 /* If we hit the max delay, we could not write the register */
242 if (delay == 100) {
243 uint16_t TempValue;
244
245 DBG_WARNING(et131x_dbginfo,
246 "xcvrReg 0x%08x could not be written", xcvrReg);
247 DBG_WARNING(et131x_dbginfo, "status is 0x%08x\n",
248 miiIndicator.value);
249 DBG_WARNING(et131x_dbginfo, "command is 0x%08x\n",
250 readl(&mac->mii_mgmt_cmd.value));
251
252 MiRead(adapter, xcvrReg, &TempValue);
253
254 status = -EIO;
255 }
256
257 /* Stop the write operation */
258 writel(0, &mac->mii_mgmt_cmd.value);
259
260 /* set the registers we touched back to the state at which we entered
261 * this function
262 */
263 writel(miiAddr.value, &mac->mii_mgmt_addr.value);
264 writel(miiCmd.value, &mac->mii_mgmt_cmd.value);
265
266 DBG_VERBOSE(et131x_dbginfo, " xcvr_addr = 0x%02x, "
267 "xcvr_reg = 0x%02x, "
268 "value = 0x%04x.\n", xcvrAddr, xcvrReg, value);
269
270 return status;
271 }
272
273 /**
274 * et131x_xcvr_find - Find the PHY ID
275 * @adapter: pointer to our private adapter structure
276 *
277 * Returns 0 on success, errno on failure (as defined in errno.h)
278 */
279 int et131x_xcvr_find(struct et131x_adapter *adapter)
280 {
281 int status = -ENODEV;
282 uint8_t xcvr_addr;
283 MI_IDR1_t idr1;
284 MI_IDR2_t idr2;
285 uint32_t xcvr_id;
286
287 DBG_ENTER(et131x_dbginfo);
288
289 /* We need to get xcvr id and address we just get the first one */
290 for (xcvr_addr = 0; xcvr_addr < 32; xcvr_addr++) {
291 /* Read the ID from the PHY */
292 PhyMiRead(adapter, xcvr_addr,
293 (uint8_t) offsetof(MI_REGS_t, idr1),
294 &idr1.value);
295 PhyMiRead(adapter, xcvr_addr,
296 (uint8_t) offsetof(MI_REGS_t, idr2),
297 &idr2.value);
298
299 xcvr_id = (uint32_t) ((idr1.value << 16) | idr2.value);
300
301 if ((idr1.value != 0) && (idr1.value != 0xffff)) {
302 DBG_TRACE(et131x_dbginfo,
303 "Xcvr addr: 0x%02x\tXcvr_id: 0x%08x\n",
304 xcvr_addr, xcvr_id);
305
306 adapter->Stats.xcvr_id = xcvr_id;
307 adapter->Stats.xcvr_addr = xcvr_addr;
308
309 status = 0;
310 break;
311 }
312 }
313
314 DBG_LEAVE(et131x_dbginfo);
315 return status;
316 }
317
318 /**
319 * et131x_setphy_normal - Set PHY for normal operation.
320 * @adapter: pointer to our private adapter structure
321 *
322 * Used by Power Management to force the PHY into 10 Base T half-duplex mode,
323 * when going to D3 in WOL mode. Also used during initialization to set the
324 * PHY for normal operation.
325 */
326 int et131x_setphy_normal(struct et131x_adapter *adapter)
327 {
328 int status;
329
330 DBG_ENTER(et131x_dbginfo);
331
332 /* Make sure the PHY is powered up */
333 ET1310_PhyPowerDown(adapter, 0);
334 status = et131x_xcvr_init(adapter);
335
336 DBG_LEAVE(et131x_dbginfo);
337 return status;
338 }
339
340 /**
341 * et131x_xcvr_init - Init the phy if we are setting it into force mode
342 * @adapter: pointer to our private adapter structure
343 *
344 * Returns 0 on success, errno on failure (as defined in errno.h)
345 */
346 static int et131x_xcvr_init(struct et131x_adapter *adapter)
347 {
348 int status = 0;
349 MI_IMR_t imr;
350 MI_ISR_t isr;
351 MI_LCR2_t lcr2;
352
353 DBG_ENTER(et131x_dbginfo);
354
355 /* Zero out the adapter structure variable representing BMSR */
356 adapter->Bmsr.value = 0;
357
358 MiRead(adapter, (uint8_t) offsetof(MI_REGS_t, isr), &isr.value);
359
360 MiRead(adapter, (uint8_t) offsetof(MI_REGS_t, imr), &imr.value);
361
362 /* Set the link status interrupt only. Bad behavior when link status
363 * and auto neg are set, we run into a nested interrupt problem
364 */
365 imr.bits.int_en = 0x1;
366 imr.bits.link_status = 0x1;
367 imr.bits.autoneg_status = 0x1;
368
369 MiWrite(adapter, (uint8_t) offsetof(MI_REGS_t, imr), imr.value);
370
371 /* Set the LED behavior such that LED 1 indicates speed (off =
372 * 10Mbits, blink = 100Mbits, on = 1000Mbits) and LED 2 indicates
373 * link and activity (on for link, blink off for activity).
374 *
375 * NOTE: Some customizations have been added here for specific
376 * vendors; The LED behavior is now determined by vendor data in the
377 * EEPROM. However, the above description is the default.
378 */
379 if ((adapter->eepromData[1] & 0x4) == 0) {
380 MiRead(adapter, (uint8_t) offsetof(MI_REGS_t, lcr2),
381 &lcr2.value);
382 if ((adapter->eepromData[1] & 0x8) == 0)
383 lcr2.bits.led_tx_rx = 0x3;
384 else
385 lcr2.bits.led_tx_rx = 0x4;
386 lcr2.bits.led_link = 0xa;
387 MiWrite(adapter, (uint8_t) offsetof(MI_REGS_t, lcr2),
388 lcr2.value);
389 }
390
391 /* Determine if we need to go into a force mode and set it */
392 if (adapter->AiForceSpeed == 0 && adapter->AiForceDpx == 0) {
393 if ((adapter->RegistryFlowControl == TxOnly) ||
394 (adapter->RegistryFlowControl == Both)) {
395 ET1310_PhyAccessMiBit(adapter,
396 TRUEPHY_BIT_SET, 4, 11, NULL);
397 } else {
398 ET1310_PhyAccessMiBit(adapter,
399 TRUEPHY_BIT_CLEAR, 4, 11, NULL);
400 }
401
402 if (adapter->RegistryFlowControl == Both) {
403 ET1310_PhyAccessMiBit(adapter,
404 TRUEPHY_BIT_SET, 4, 10, NULL);
405 } else {
406 ET1310_PhyAccessMiBit(adapter,
407 TRUEPHY_BIT_CLEAR, 4, 10, NULL);
408 }
409
410 /* Set the phy to autonegotiation */
411 ET1310_PhyAutoNeg(adapter, true);
412
413 /* NOTE - Do we need this? */
414 ET1310_PhyAccessMiBit(adapter, TRUEPHY_BIT_SET, 0, 9, NULL);
415
416 DBG_LEAVE(et131x_dbginfo);
417 return status;
418 } else {
419 ET1310_PhyAutoNeg(adapter, false);
420
421 /* Set to the correct force mode. */
422 if (adapter->AiForceDpx != 1) {
423 if ((adapter->RegistryFlowControl == TxOnly) ||
424 (adapter->RegistryFlowControl == Both)) {
425 ET1310_PhyAccessMiBit(adapter,
426 TRUEPHY_BIT_SET, 4, 11,
427 NULL);
428 } else {
429 ET1310_PhyAccessMiBit(adapter,
430 TRUEPHY_BIT_CLEAR, 4, 11,
431 NULL);
432 }
433
434 if (adapter->RegistryFlowControl == Both) {
435 ET1310_PhyAccessMiBit(adapter,
436 TRUEPHY_BIT_SET, 4, 10,
437 NULL);
438 } else {
439 ET1310_PhyAccessMiBit(adapter,
440 TRUEPHY_BIT_CLEAR, 4, 10,
441 NULL);
442 }
443 } else {
444 ET1310_PhyAccessMiBit(adapter,
445 TRUEPHY_BIT_CLEAR, 4, 10, NULL);
446 ET1310_PhyAccessMiBit(adapter,
447 TRUEPHY_BIT_CLEAR, 4, 11, NULL);
448 }
449
450 switch (adapter->AiForceSpeed) {
451 case 10:
452 if (adapter->AiForceDpx == 1) {
453 TPAL_SetPhy10HalfDuplex(adapter);
454 } else if (adapter->AiForceDpx == 2) {
455 TPAL_SetPhy10FullDuplex(adapter);
456 } else {
457 TPAL_SetPhy10Force(adapter);
458 }
459 break;
460 case 100:
461 if (adapter->AiForceDpx == 1) {
462 TPAL_SetPhy100HalfDuplex(adapter);
463 } else if (adapter->AiForceDpx == 2) {
464 TPAL_SetPhy100FullDuplex(adapter);
465 } else {
466 TPAL_SetPhy100Force(adapter);
467 }
468 break;
469 case 1000:
470 TPAL_SetPhy1000FullDuplex(adapter);
471 break;
472 }
473
474 DBG_LEAVE(et131x_dbginfo);
475 return status;
476 }
477 }
478
479 void et131x_Mii_check(struct et131x_adapter *pAdapter,
480 MI_BMSR_t bmsr, MI_BMSR_t bmsr_ints)
481 {
482 uint8_t ucLinkStatus;
483 uint32_t uiAutoNegStatus;
484 uint32_t uiSpeed;
485 uint32_t uiDuplex;
486 uint32_t uiMdiMdix;
487 uint32_t uiMasterSlave;
488 uint32_t uiPolarity;
489 unsigned long lockflags;
490
491 DBG_ENTER(et131x_dbginfo);
492
493 if (bmsr_ints.bits.link_status) {
494 if (bmsr.bits.link_status) {
495 pAdapter->PoMgmt.TransPhyComaModeOnBoot = 20;
496
497 /* Update our state variables and indicate the
498 * connected state
499 */
500 spin_lock_irqsave(&pAdapter->Lock, lockflags);
501
502 pAdapter->MediaState = NETIF_STATUS_MEDIA_CONNECT;
503 MP_CLEAR_FLAG(pAdapter, fMP_ADAPTER_LINK_DETECTION);
504
505 spin_unlock_irqrestore(&pAdapter->Lock, lockflags);
506
507 /* Don't indicate state if we're in loopback mode */
508 if (pAdapter->RegistryPhyLoopbk == false) {
509 netif_carrier_on(pAdapter->netdev);
510 }
511 } else {
512 DBG_WARNING(et131x_dbginfo,
513 "Link down cable problem\n");
514
515 if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_10MBPS) {
516 // NOTE - Is there a way to query this without TruePHY?
517 // && TRU_QueryCoreType(pAdapter->hTruePhy, 0) == EMI_TRUEPHY_A13O) {
518 uint16_t Register18;
519
520 MiRead(pAdapter, 0x12, &Register18);
521 MiWrite(pAdapter, 0x12, Register18 | 0x4);
522 MiWrite(pAdapter, 0x10, Register18 | 0x8402);
523 MiWrite(pAdapter, 0x11, Register18 | 511);
524 MiWrite(pAdapter, 0x12, Register18);
525 }
526
527 /* For the first N seconds of life, we are in "link
528 * detection" When we are in this state, we should
529 * only report "connected". When the LinkDetection
530 * Timer expires, we can report disconnected (handled
531 * in the LinkDetectionDPC).
532 */
533 if ((MP_IS_FLAG_CLEAR
534 (pAdapter, fMP_ADAPTER_LINK_DETECTION))
535 || (pAdapter->MediaState ==
536 NETIF_STATUS_MEDIA_DISCONNECT)) {
537 spin_lock_irqsave(&pAdapter->Lock, lockflags);
538 pAdapter->MediaState =
539 NETIF_STATUS_MEDIA_DISCONNECT;
540 spin_unlock_irqrestore(&pAdapter->Lock,
541 lockflags);
542
543 /* Only indicate state if we're in loopback
544 * mode
545 */
546 if (pAdapter->RegistryPhyLoopbk == false) {
547 netif_carrier_off(pAdapter->netdev);
548 }
549 }
550
551 pAdapter->uiLinkSpeed = 0;
552 pAdapter->uiDuplexMode = 0;
553
554 /* Free the packets being actively sent & stopped */
555 et131x_free_busy_send_packets(pAdapter);
556
557 /* Re-initialize the send structures */
558 et131x_init_send(pAdapter);
559
560 /* Reset the RFD list and re-start RU */
561 et131x_reset_recv(pAdapter);
562
563 /*
564 * Bring the device back to the state it was during
565 * init prior to autonegotiation being complete. This
566 * way, when we get the auto-neg complete interrupt,
567 * we can complete init by calling ConfigMacREGS2.
568 */
569 et131x_soft_reset(pAdapter);
570
571 /* Setup ET1310 as per the documentation */
572 et131x_adapter_setup(pAdapter);
573
574 /* Setup the PHY into coma mode until the cable is
575 * plugged back in
576 */
577 if (pAdapter->RegistryPhyComa == 1) {
578 EnablePhyComa(pAdapter);
579 }
580 }
581 }
582
583 if (bmsr_ints.bits.auto_neg_complete ||
584 ((pAdapter->AiForceDpx == 3) && (bmsr_ints.bits.link_status))) {
585 if (bmsr.bits.auto_neg_complete || (pAdapter->AiForceDpx == 3)) {
586 ET1310_PhyLinkStatus(pAdapter,
587 &ucLinkStatus, &uiAutoNegStatus,
588 &uiSpeed, &uiDuplex, &uiMdiMdix,
589 &uiMasterSlave, &uiPolarity);
590
591 pAdapter->uiLinkSpeed = uiSpeed;
592 pAdapter->uiDuplexMode = uiDuplex;
593
594 DBG_TRACE(et131x_dbginfo,
595 "pAdapter->uiLinkSpeed 0x%04x, pAdapter->uiDuplex 0x%08x\n",
596 pAdapter->uiLinkSpeed,
597 pAdapter->uiDuplexMode);
598
599 pAdapter->PoMgmt.TransPhyComaModeOnBoot = 20;
600
601 if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_10MBPS) {
602 // NOTE - Is there a way to query this without TruePHY?
603 // && TRU_QueryCoreType(pAdapter->hTruePhy, 0) == EMI_TRUEPHY_A13O) {
604 uint16_t Register18;
605
606 MiRead(pAdapter, 0x12, &Register18);
607 MiWrite(pAdapter, 0x12, Register18 | 0x4);
608 MiWrite(pAdapter, 0x10, Register18 | 0x8402);
609 MiWrite(pAdapter, 0x11, Register18 | 511);
610 MiWrite(pAdapter, 0x12, Register18);
611 }
612
613 ConfigFlowControl(pAdapter);
614
615 if ((pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) &&
616 (pAdapter->RegistryJumboPacket > 2048))
617 {
618 ET1310_PhyAndOrReg(pAdapter, 0x16, 0xcfff,
619 0x2000);
620 }
621
622 SetRxDmaTimer(pAdapter);
623 ConfigMACRegs2(pAdapter);
624 }
625 }
626
627 DBG_LEAVE(et131x_dbginfo);
628 }
629
630 /**
631 * TPAL_SetPhy10HalfDuplex - Force the phy into 10 Base T Half Duplex mode.
632 * @pAdapter: pointer to the adapter structure
633 *
634 * Also sets the MAC so it is syncd up properly
635 */
636 void TPAL_SetPhy10HalfDuplex(struct et131x_adapter *pAdapter)
637 {
638 DBG_ENTER(et131x_dbginfo);
639
640 /* Power down PHY */
641 ET1310_PhyPowerDown(pAdapter, 1);
642
643 /* First we need to turn off all other advertisement */
644 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
645
646 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
647
648 /* Set our advertise values accordingly */
649 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_HALF);
650
651 /* Power up PHY */
652 ET1310_PhyPowerDown(pAdapter, 0);
653
654 DBG_LEAVE(et131x_dbginfo);
655 }
656
657 /**
658 * TPAL_SetPhy10FullDuplex - Force the phy into 10 Base T Full Duplex mode.
659 * @pAdapter: pointer to the adapter structure
660 *
661 * Also sets the MAC so it is syncd up properly
662 */
663 void TPAL_SetPhy10FullDuplex(struct et131x_adapter *pAdapter)
664 {
665 DBG_ENTER(et131x_dbginfo);
666
667 /* Power down PHY */
668 ET1310_PhyPowerDown(pAdapter, 1);
669
670 /* First we need to turn off all other advertisement */
671 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
672
673 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
674
675 /* Set our advertise values accordingly */
676 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_FULL);
677
678 /* Power up PHY */
679 ET1310_PhyPowerDown(pAdapter, 0);
680
681 DBG_LEAVE(et131x_dbginfo);
682 }
683
684 /**
685 * TPAL_SetPhy10Force - Force Base-T FD mode WITHOUT using autonegotiation
686 * @pAdapter: pointer to the adapter structure
687 */
688 void TPAL_SetPhy10Force(struct et131x_adapter *pAdapter)
689 {
690 DBG_ENTER(et131x_dbginfo);
691
692 /* Power down PHY */
693 ET1310_PhyPowerDown(pAdapter, 1);
694
695 /* Disable autoneg */
696 ET1310_PhyAutoNeg(pAdapter, false);
697
698 /* Disable all advertisement */
699 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
700 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
701 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
702
703 /* Force 10 Mbps */
704 ET1310_PhySpeedSelect(pAdapter, TRUEPHY_SPEED_10MBPS);
705
706 /* Force Full duplex */
707 ET1310_PhyDuplexMode(pAdapter, TRUEPHY_DUPLEX_FULL);
708
709 /* Power up PHY */
710 ET1310_PhyPowerDown(pAdapter, 0);
711
712 DBG_LEAVE(et131x_dbginfo);
713 }
714
715 /**
716 * TPAL_SetPhy100HalfDuplex - Force 100 Base T Half Duplex mode.
717 * @pAdapter: pointer to the adapter structure
718 *
719 * Also sets the MAC so it is syncd up properly.
720 */
721 void TPAL_SetPhy100HalfDuplex(struct et131x_adapter *pAdapter)
722 {
723 DBG_ENTER(et131x_dbginfo);
724
725 /* Power down PHY */
726 ET1310_PhyPowerDown(pAdapter, 1);
727
728 /* first we need to turn off all other advertisement */
729 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
730
731 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
732
733 /* Set our advertise values accordingly */
734 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_HALF);
735
736 /* Set speed */
737 ET1310_PhySpeedSelect(pAdapter, TRUEPHY_SPEED_100MBPS);
738
739 /* Power up PHY */
740 ET1310_PhyPowerDown(pAdapter, 0);
741
742 DBG_LEAVE(et131x_dbginfo);
743 }
744
745 /**
746 * TPAL_SetPhy100FullDuplex - Force 100 Base T Full Duplex mode.
747 * @pAdapter: pointer to the adapter structure
748 *
749 * Also sets the MAC so it is syncd up properly
750 */
751 void TPAL_SetPhy100FullDuplex(struct et131x_adapter *pAdapter)
752 {
753 DBG_ENTER(et131x_dbginfo);
754
755 /* Power down PHY */
756 ET1310_PhyPowerDown(pAdapter, 1);
757
758 /* First we need to turn off all other advertisement */
759 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
760
761 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
762
763 /* Set our advertise values accordingly */
764 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_FULL);
765
766 /* Power up PHY */
767 ET1310_PhyPowerDown(pAdapter, 0);
768
769 DBG_LEAVE(et131x_dbginfo);
770 }
771
772 /**
773 * TPAL_SetPhy100Force - Force 100 BaseT FD mode WITHOUT using autonegotiation
774 * @pAdapter: pointer to the adapter structure
775 */
776 void TPAL_SetPhy100Force(struct et131x_adapter *pAdapter)
777 {
778 DBG_ENTER(et131x_dbginfo);
779
780 /* Power down PHY */
781 ET1310_PhyPowerDown(pAdapter, 1);
782
783 /* Disable autoneg */
784 ET1310_PhyAutoNeg(pAdapter, false);
785
786 /* Disable all advertisement */
787 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
788 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
789 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
790
791 /* Force 100 Mbps */
792 ET1310_PhySpeedSelect(pAdapter, TRUEPHY_SPEED_100MBPS);
793
794 /* Force Full duplex */
795 ET1310_PhyDuplexMode(pAdapter, TRUEPHY_DUPLEX_FULL);
796
797 /* Power up PHY */
798 ET1310_PhyPowerDown(pAdapter, 0);
799
800 DBG_LEAVE(et131x_dbginfo);
801 }
802
803 /**
804 * TPAL_SetPhy1000FullDuplex - Force 1000 Base T Full Duplex mode
805 * @pAdapter: pointer to the adapter structure
806 *
807 * Also sets the MAC so it is syncd up properly.
808 */
809 void TPAL_SetPhy1000FullDuplex(struct et131x_adapter *pAdapter)
810 {
811 DBG_ENTER(et131x_dbginfo);
812
813 /* Power down PHY */
814 ET1310_PhyPowerDown(pAdapter, 1);
815
816 /* first we need to turn off all other advertisement */
817 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
818
819 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
820
821 /* set our advertise values accordingly */
822 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_FULL);
823
824 /* power up PHY */
825 ET1310_PhyPowerDown(pAdapter, 0);
826
827 DBG_LEAVE(et131x_dbginfo);
828 }
829
830 /**
831 * TPAL_SetPhyAutoNeg - Set phy to autonegotiation mode.
832 * @pAdapter: pointer to the adapter structure
833 */
834 void TPAL_SetPhyAutoNeg(struct et131x_adapter *pAdapter)
835 {
836 DBG_ENTER(et131x_dbginfo);
837
838 /* Power down PHY */
839 ET1310_PhyPowerDown(pAdapter, 1);
840
841 /* Turn on advertisement of all capabilities */
842 ET1310_PhyAdvertise10BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_BOTH);
843
844 ET1310_PhyAdvertise100BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_BOTH);
845
846 if (pAdapter->DeviceID != ET131X_PCI_DEVICE_ID_FAST) {
847 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_FULL);
848 } else {
849 ET1310_PhyAdvertise1000BaseT(pAdapter, TRUEPHY_ADV_DUPLEX_NONE);
850 }
851
852 /* Make sure auto-neg is ON (it is disabled in FORCE modes) */
853 ET1310_PhyAutoNeg(pAdapter, true);
854
855 /* Power up PHY */
856 ET1310_PhyPowerDown(pAdapter, 0);
857
858 DBG_LEAVE(et131x_dbginfo);
859 }
860
861
862 /*
863 * The routines which follow provide low-level access to the PHY, and are used
864 * primarily by the routines above (although there are a few places elsewhere
865 * in the driver where this level of access is required).
866 */
867
868 static const uint16_t ConfigPhy[25][2] = {
869 /* Reg Value Register */
870 /* Addr */
871 {0x880B, 0x0926}, /* AfeIfCreg4B1000Msbs */
872 {0x880C, 0x0926}, /* AfeIfCreg4B100Msbs */
873 {0x880D, 0x0926}, /* AfeIfCreg4B10Msbs */
874
875 {0x880E, 0xB4D3}, /* AfeIfCreg4B1000Lsbs */
876 {0x880F, 0xB4D3}, /* AfeIfCreg4B100Lsbs */
877 {0x8810, 0xB4D3}, /* AfeIfCreg4B10Lsbs */
878
879 {0x8805, 0xB03E}, /* AfeIfCreg3B1000Msbs */
880 {0x8806, 0xB03E}, /* AfeIfCreg3B100Msbs */
881 {0x8807, 0xFF00}, /* AfeIfCreg3B10Msbs */
882
883 {0x8808, 0xE090}, /* AfeIfCreg3B1000Lsbs */
884 {0x8809, 0xE110}, /* AfeIfCreg3B100Lsbs */
885 {0x880A, 0x0000}, /* AfeIfCreg3B10Lsbs */
886
887 {0x300D, 1}, /* DisableNorm */
888
889 {0x280C, 0x0180}, /* LinkHoldEnd */
890
891 {0x1C21, 0x0002}, /* AlphaM */
892
893 {0x3821, 6}, /* FfeLkgTx0 */
894 {0x381D, 1}, /* FfeLkg1g4 */
895 {0x381E, 1}, /* FfeLkg1g5 */
896 {0x381F, 1}, /* FfeLkg1g6 */
897 {0x3820, 1}, /* FfeLkg1g7 */
898
899 {0x8402, 0x01F0}, /* Btinact */
900 {0x800E, 20}, /* LftrainTime */
901 {0x800F, 24}, /* DvguardTime */
902 {0x8010, 46}, /* IdlguardTime */
903
904 {0, 0}
905
906 };
907
908 /* condensed version of the phy initialization routine */
909 void ET1310_PhyInit(struct et131x_adapter *pAdapter)
910 {
911 uint16_t usData, usIndex;
912
913 if (pAdapter == NULL) {
914 return;
915 }
916
917 // get the identity (again ?)
918 MiRead(pAdapter, PHY_ID_1, &usData);
919 MiRead(pAdapter, PHY_ID_2, &usData);
920
921 // what does this do/achieve ?
922 MiRead(pAdapter, PHY_MPHY_CONTROL_REG, &usData); // should read 0002
923 MiWrite(pAdapter, PHY_MPHY_CONTROL_REG, 0x0006);
924
925 // read modem register 0402, should I do something with the return data ?
926 MiWrite(pAdapter, PHY_INDEX_REG, 0x0402);
927 MiRead(pAdapter, PHY_DATA_REG, &usData);
928
929 // what does this do/achieve ?
930 MiWrite(pAdapter, PHY_MPHY_CONTROL_REG, 0x0002);
931
932 // get the identity (again ?)
933 MiRead(pAdapter, PHY_ID_1, &usData);
934 MiRead(pAdapter, PHY_ID_2, &usData);
935
936 // what does this achieve ?
937 MiRead(pAdapter, PHY_MPHY_CONTROL_REG, &usData); // should read 0002
938 MiWrite(pAdapter, PHY_MPHY_CONTROL_REG, 0x0006);
939
940 // read modem register 0402, should I do something with the return data?
941 MiWrite(pAdapter, PHY_INDEX_REG, 0x0402);
942 MiRead(pAdapter, PHY_DATA_REG, &usData);
943
944 MiWrite(pAdapter, PHY_MPHY_CONTROL_REG, 0x0002);
945
946 // what does this achieve (should return 0x1040)
947 MiRead(pAdapter, PHY_CONTROL, &usData);
948 MiRead(pAdapter, PHY_MPHY_CONTROL_REG, &usData); // should read 0002
949 MiWrite(pAdapter, PHY_CONTROL, 0x1840);
950
951 MiWrite(pAdapter, PHY_MPHY_CONTROL_REG, 0x0007);
952
953 // here the writing of the array starts....
954 usIndex = 0;
955 while (ConfigPhy[usIndex][0] != 0x0000) {
956 // write value
957 MiWrite(pAdapter, PHY_INDEX_REG, ConfigPhy[usIndex][0]);
958 MiWrite(pAdapter, PHY_DATA_REG, ConfigPhy[usIndex][1]);
959
960 // read it back
961 MiWrite(pAdapter, PHY_INDEX_REG, ConfigPhy[usIndex][0]);
962 MiRead(pAdapter, PHY_DATA_REG, &usData);
963
964 // do a check on the value read back ?
965 usIndex++;
966 }
967 // here the writing of the array ends...
968
969 MiRead(pAdapter, PHY_CONTROL, &usData); // 0x1840
970 MiRead(pAdapter, PHY_MPHY_CONTROL_REG, &usData); // should read 0007
971 MiWrite(pAdapter, PHY_CONTROL, 0x1040);
972 MiWrite(pAdapter, PHY_MPHY_CONTROL_REG, 0x0002);
973 }
974
975 void ET1310_PhyReset(struct et131x_adapter *pAdapter)
976 {
977 MiWrite(pAdapter, PHY_CONTROL, 0x8000);
978 }
979
980 void ET1310_PhyPowerDown(struct et131x_adapter *pAdapter, bool down)
981 {
982 uint16_t usData;
983
984 MiRead(pAdapter, PHY_CONTROL, &usData);
985
986 if (down == false) {
987 // Power UP
988 usData &= ~0x0800;
989 MiWrite(pAdapter, PHY_CONTROL, usData);
990 } else {
991 // Power DOWN
992 usData |= 0x0800;
993 MiWrite(pAdapter, PHY_CONTROL, usData);
994 }
995 }
996
997 void ET1310_PhyAutoNeg(struct et131x_adapter *pAdapter, bool enable)
998 {
999 uint16_t usData;
1000
1001 MiRead(pAdapter, PHY_CONTROL, &usData);
1002
1003 if (enable == true) {
1004 // Autonegotiation ON
1005 usData |= 0x1000;
1006 MiWrite(pAdapter, PHY_CONTROL, usData);
1007 } else {
1008 // Autonegotiation OFF
1009 usData &= ~0x1000;
1010 MiWrite(pAdapter, PHY_CONTROL, usData);
1011 }
1012 }
1013
1014 void ET1310_PhyDuplexMode(struct et131x_adapter *pAdapter, uint16_t duplex)
1015 {
1016 uint16_t usData;
1017
1018 MiRead(pAdapter, PHY_CONTROL, &usData);
1019
1020 if (duplex == TRUEPHY_DUPLEX_FULL) {
1021 // Set Full Duplex
1022 usData |= 0x100;
1023 MiWrite(pAdapter, PHY_CONTROL, usData);
1024 } else {
1025 // Set Half Duplex
1026 usData &= ~0x100;
1027 MiWrite(pAdapter, PHY_CONTROL, usData);
1028 }
1029 }
1030
1031 void ET1310_PhySpeedSelect(struct et131x_adapter *pAdapter, uint16_t speed)
1032 {
1033 uint16_t usData;
1034
1035 // Read the PHY control register
1036 MiRead(pAdapter, PHY_CONTROL, &usData);
1037
1038 // Clear all Speed settings (Bits 6, 13)
1039 usData &= ~0x2040;
1040
1041 // Reset the speed bits based on user selection
1042 switch (speed) {
1043 case TRUEPHY_SPEED_10MBPS:
1044 // Bits already cleared above, do nothing
1045 break;
1046
1047 case TRUEPHY_SPEED_100MBPS:
1048 // 100M == Set bit 13
1049 usData |= 0x2000;
1050 break;
1051
1052 case TRUEPHY_SPEED_1000MBPS:
1053 default:
1054 usData |= 0x0040;
1055 break;
1056 }
1057
1058 // Write back the new speed
1059 MiWrite(pAdapter, PHY_CONTROL, usData);
1060 }
1061
1062 void ET1310_PhyAdvertise1000BaseT(struct et131x_adapter *pAdapter,
1063 uint16_t duplex)
1064 {
1065 uint16_t usData;
1066
1067 // Read the PHY 1000 Base-T Control Register
1068 MiRead(pAdapter, PHY_1000_CONTROL, &usData);
1069
1070 // Clear Bits 8,9
1071 usData &= ~0x0300;
1072
1073 switch (duplex) {
1074 case TRUEPHY_ADV_DUPLEX_NONE:
1075 // Duplex already cleared, do nothing
1076 break;
1077
1078 case TRUEPHY_ADV_DUPLEX_FULL:
1079 // Set Bit 9
1080 usData |= 0x0200;
1081 break;
1082
1083 case TRUEPHY_ADV_DUPLEX_HALF:
1084 // Set Bit 8
1085 usData |= 0x0100;
1086 break;
1087
1088 case TRUEPHY_ADV_DUPLEX_BOTH:
1089 default:
1090 usData |= 0x0300;
1091 break;
1092 }
1093
1094 // Write back advertisement
1095 MiWrite(pAdapter, PHY_1000_CONTROL, usData);
1096 }
1097
1098 void ET1310_PhyAdvertise100BaseT(struct et131x_adapter *pAdapter,
1099 uint16_t duplex)
1100 {
1101 uint16_t usData;
1102
1103 // Read the Autonegotiation Register (10/100)
1104 MiRead(pAdapter, PHY_AUTO_ADVERTISEMENT, &usData);
1105
1106 // Clear bits 7,8
1107 usData &= ~0x0180;
1108
1109 switch (duplex) {
1110 case TRUEPHY_ADV_DUPLEX_NONE:
1111 // Duplex already cleared, do nothing
1112 break;
1113
1114 case TRUEPHY_ADV_DUPLEX_FULL:
1115 // Set Bit 8
1116 usData |= 0x0100;
1117 break;
1118
1119 case TRUEPHY_ADV_DUPLEX_HALF:
1120 // Set Bit 7
1121 usData |= 0x0080;
1122 break;
1123
1124 case TRUEPHY_ADV_DUPLEX_BOTH:
1125 default:
1126 // Set Bits 7,8
1127 usData |= 0x0180;
1128 break;
1129 }
1130
1131 // Write back advertisement
1132 MiWrite(pAdapter, PHY_AUTO_ADVERTISEMENT, usData);
1133 }
1134
1135 void ET1310_PhyAdvertise10BaseT(struct et131x_adapter *pAdapter,
1136 uint16_t duplex)
1137 {
1138 uint16_t usData;
1139
1140 // Read the Autonegotiation Register (10/100)
1141 MiRead(pAdapter, PHY_AUTO_ADVERTISEMENT, &usData);
1142
1143 // Clear bits 5,6
1144 usData &= ~0x0060;
1145
1146 switch (duplex) {
1147 case TRUEPHY_ADV_DUPLEX_NONE:
1148 // Duplex already cleared, do nothing
1149 break;
1150
1151 case TRUEPHY_ADV_DUPLEX_FULL:
1152 // Set Bit 6
1153 usData |= 0x0040;
1154 break;
1155
1156 case TRUEPHY_ADV_DUPLEX_HALF:
1157 // Set Bit 5
1158 usData |= 0x0020;
1159 break;
1160
1161 case TRUEPHY_ADV_DUPLEX_BOTH:
1162 default:
1163 // Set Bits 5,6
1164 usData |= 0x0060;
1165 break;
1166 }
1167
1168 // Write back advertisement
1169 MiWrite(pAdapter, PHY_AUTO_ADVERTISEMENT, usData);
1170 }
1171
1172 void ET1310_PhyLinkStatus(struct et131x_adapter *pAdapter,
1173 uint8_t *ucLinkStatus,
1174 uint32_t *uiAutoNeg,
1175 uint32_t *uiLinkSpeed,
1176 uint32_t *uiDuplexMode,
1177 uint32_t *uiMdiMdix,
1178 uint32_t *uiMasterSlave, uint32_t *uiPolarity)
1179 {
1180 uint16_t usMiStatus = 0;
1181 uint16_t us1000BaseT = 0;
1182 uint16_t usVmiPhyStatus = 0;
1183 uint16_t usControl = 0;
1184
1185 MiRead(pAdapter, PHY_STATUS, &usMiStatus);
1186 MiRead(pAdapter, PHY_1000_STATUS, &us1000BaseT);
1187 MiRead(pAdapter, PHY_PHY_STATUS, &usVmiPhyStatus);
1188 MiRead(pAdapter, PHY_CONTROL, &usControl);
1189
1190 if (ucLinkStatus) {
1191 *ucLinkStatus =
1192 (unsigned char)((usVmiPhyStatus & 0x0040) ? 1 : 0);
1193 }
1194
1195 if (uiAutoNeg) {
1196 *uiAutoNeg =
1197 (usControl & 0x1000) ? ((usVmiPhyStatus & 0x0020) ?
1198 TRUEPHY_ANEG_COMPLETE :
1199 TRUEPHY_ANEG_NOT_COMPLETE) :
1200 TRUEPHY_ANEG_DISABLED;
1201 }
1202
1203 if (uiLinkSpeed) {
1204 *uiLinkSpeed = (usVmiPhyStatus & 0x0300) >> 8;
1205 }
1206
1207 if (uiDuplexMode) {
1208 *uiDuplexMode = (usVmiPhyStatus & 0x0080) >> 7;
1209 }
1210
1211 if (uiMdiMdix) {
1212 /* NOTE: Need to complete this */
1213 *uiMdiMdix = 0;
1214 }
1215
1216 if (uiMasterSlave) {
1217 *uiMasterSlave =
1218 (us1000BaseT & 0x4000) ? TRUEPHY_CFG_MASTER :
1219 TRUEPHY_CFG_SLAVE;
1220 }
1221
1222 if (uiPolarity) {
1223 *uiPolarity =
1224 (usVmiPhyStatus & 0x0400) ? TRUEPHY_POLARITY_INVERTED :
1225 TRUEPHY_POLARITY_NORMAL;
1226 }
1227 }
1228
1229 void ET1310_PhyAndOrReg(struct et131x_adapter *pAdapter,
1230 uint16_t regnum, uint16_t andMask, uint16_t orMask)
1231 {
1232 uint16_t reg;
1233
1234 // Read the requested register
1235 MiRead(pAdapter, regnum, ®);
1236
1237 // Apply the AND mask
1238 reg &= andMask;
1239
1240 // Apply the OR mask
1241 reg |= orMask;
1242
1243 // Write the value back to the register
1244 MiWrite(pAdapter, regnum, reg);
1245 }
1246
1247 void ET1310_PhyAccessMiBit(struct et131x_adapter *pAdapter, uint16_t action,
1248 uint16_t regnum, uint16_t bitnum, uint8_t *value)
1249 {
1250 uint16_t reg;
1251 uint16_t mask = 0;
1252
1253 // Create a mask to isolate the requested bit
1254 mask = 0x0001 << bitnum;
1255
1256 // Read the requested register
1257 MiRead(pAdapter, regnum, ®);
1258
1259 switch (action) {
1260 case TRUEPHY_BIT_READ:
1261 if (value != NULL) {
1262 *value = (reg & mask) >> bitnum;
1263 }
1264 break;
1265
1266 case TRUEPHY_BIT_SET:
1267 reg |= mask;
1268 MiWrite(pAdapter, regnum, reg);
1269 break;
1270
1271 case TRUEPHY_BIT_CLEAR:
1272 reg &= ~mask;
1273 MiWrite(pAdapter, regnum, reg);
1274 break;
1275
1276 default:
1277 break;
1278 }
1279 }
1280
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