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60static const char version[] =
61 "smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>\n";
62
63
64#ifndef SMC_DEBUG
65#define SMC_DEBUG 0
66#endif
67
68
69#include <linux/init.h>
70#include <linux/module.h>
71#include <linux/kernel.h>
72#include <linux/sched.h>
73#include <linux/slab.h>
74#include <linux/delay.h>
75#include <linux/interrupt.h>
76#include <linux/errno.h>
77#include <linux/ioport.h>
78#include <linux/crc32.h>
79#include <linux/platform_device.h>
80#include <linux/spinlock.h>
81#include <linux/ethtool.h>
82#include <linux/mii.h>
83#include <linux/workqueue.h>
84
85#include <linux/netdevice.h>
86#include <linux/etherdevice.h>
87#include <linux/skbuff.h>
88
89#include <asm/io.h>
90
91#include "smc91x.h"
92
93#ifndef SMC_NOWAIT
94# define SMC_NOWAIT 0
95#endif
96static int nowait = SMC_NOWAIT;
97module_param(nowait, int, 0400);
98MODULE_PARM_DESC(nowait, "set to 1 for no wait state");
99
100
101
102
103static int watchdog = 1000;
104module_param(watchdog, int, 0400);
105MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
106
107MODULE_LICENSE("GPL");
108MODULE_ALIAS("platform:smc91x");
109
110
111
112
113
114
115#define CARDNAME "smc91x"
116
117
118
119
120#define POWER_DOWN 1
121
122
123
124
125
126
127#define MEMORY_WAIT_TIME 16
128
129
130
131
132
133#define MAX_IRQ_LOOPS 8
134
135
136
137
138
139
140
141
142#define THROTTLE_TX_PKTS 0
143
144
145
146
147
148#define MII_DELAY 1
149
150#if SMC_DEBUG > 0
151#define DBG(n, args...) \
152 do { \
153 if (SMC_DEBUG >= (n)) \
154 printk(args); \
155 } while (0)
156
157#define PRINTK(args...) printk(args)
158#else
159#define DBG(n, args...) do { } while(0)
160#define PRINTK(args...) printk(KERN_DEBUG args)
161#endif
162
163#if SMC_DEBUG > 3
164static void PRINT_PKT(u_char *buf, int length)
165{
166 int i;
167 int remainder;
168 int lines;
169
170 lines = length / 16;
171 remainder = length % 16;
172
173 for (i = 0; i < lines ; i ++) {
174 int cur;
175 for (cur = 0; cur < 8; cur++) {
176 u_char a, b;
177 a = *buf++;
178 b = *buf++;
179 printk("%02x%02x ", a, b);
180 }
181 printk("\n");
182 }
183 for (i = 0; i < remainder/2 ; i++) {
184 u_char a, b;
185 a = *buf++;
186 b = *buf++;
187 printk("%02x%02x ", a, b);
188 }
189 printk("\n");
190}
191#else
192#define PRINT_PKT(x...) do { } while(0)
193#endif
194
195
196
197#define SMC_ENABLE_INT(lp, x) do { \
198 unsigned char mask; \
199 unsigned long smc_enable_flags; \
200 spin_lock_irqsave(&lp->lock, smc_enable_flags); \
201 mask = SMC_GET_INT_MASK(lp); \
202 mask |= (x); \
203 SMC_SET_INT_MASK(lp, mask); \
204 spin_unlock_irqrestore(&lp->lock, smc_enable_flags); \
205} while (0)
206
207
208#define SMC_DISABLE_INT(lp, x) do { \
209 unsigned char mask; \
210 unsigned long smc_disable_flags; \
211 spin_lock_irqsave(&lp->lock, smc_disable_flags); \
212 mask = SMC_GET_INT_MASK(lp); \
213 mask &= ~(x); \
214 SMC_SET_INT_MASK(lp, mask); \
215 spin_unlock_irqrestore(&lp->lock, smc_disable_flags); \
216} while (0)
217
218
219
220
221
222
223#define SMC_WAIT_MMU_BUSY(lp) do { \
224 if (unlikely(SMC_GET_MMU_CMD(lp) & MC_BUSY)) { \
225 unsigned long timeout = jiffies + 2; \
226 while (SMC_GET_MMU_CMD(lp) & MC_BUSY) { \
227 if (time_after(jiffies, timeout)) { \
228 printk("%s: timeout %s line %d\n", \
229 dev->name, __FILE__, __LINE__); \
230 break; \
231 } \
232 cpu_relax(); \
233 } \
234 } \
235} while (0)
236
237
238
239
240
241static void smc_reset(struct net_device *dev)
242{
243 struct smc_local *lp = netdev_priv(dev);
244 void __iomem *ioaddr = lp->base;
245 unsigned int ctl, cfg;
246 struct sk_buff *pending_skb;
247
248 DBG(2, "%s: %s\n", dev->name, __func__);
249
250
251 spin_lock_irq(&lp->lock);
252 SMC_SELECT_BANK(lp, 2);
253 SMC_SET_INT_MASK(lp, 0);
254 pending_skb = lp->pending_tx_skb;
255 lp->pending_tx_skb = NULL;
256 spin_unlock_irq(&lp->lock);
257
258
259 if (pending_skb) {
260 dev_kfree_skb(pending_skb);
261 dev->stats.tx_errors++;
262 dev->stats.tx_aborted_errors++;
263 }
264
265
266
267
268
269 SMC_SELECT_BANK(lp, 0);
270 SMC_SET_RCR(lp, RCR_SOFTRST);
271
272
273
274
275
276
277 SMC_SELECT_BANK(lp, 1);
278
279 cfg = CONFIG_DEFAULT;
280
281
282
283
284
285
286 if (lp->cfg.flags & SMC91X_NOWAIT)
287 cfg |= CONFIG_NO_WAIT;
288
289
290
291
292
293 cfg |= CONFIG_EPH_POWER_EN;
294
295 SMC_SET_CONFIG(lp, cfg);
296
297
298
299
300
301
302
303
304
305 udelay(1);
306
307
308 SMC_SELECT_BANK(lp, 0);
309 SMC_SET_RCR(lp, RCR_CLEAR);
310 SMC_SET_TCR(lp, TCR_CLEAR);
311
312 SMC_SELECT_BANK(lp, 1);
313 ctl = SMC_GET_CTL(lp) | CTL_LE_ENABLE;
314
315
316
317
318
319
320 if(!THROTTLE_TX_PKTS)
321 ctl |= CTL_AUTO_RELEASE;
322 else
323 ctl &= ~CTL_AUTO_RELEASE;
324 SMC_SET_CTL(lp, ctl);
325
326
327 SMC_SELECT_BANK(lp, 2);
328 SMC_SET_MMU_CMD(lp, MC_RESET);
329 SMC_WAIT_MMU_BUSY(lp);
330}
331
332
333
334
335static void smc_enable(struct net_device *dev)
336{
337 struct smc_local *lp = netdev_priv(dev);
338 void __iomem *ioaddr = lp->base;
339 int mask;
340
341 DBG(2, "%s: %s\n", dev->name, __func__);
342
343
344 SMC_SELECT_BANK(lp, 0);
345 SMC_SET_TCR(lp, lp->tcr_cur_mode);
346 SMC_SET_RCR(lp, lp->rcr_cur_mode);
347
348 SMC_SELECT_BANK(lp, 1);
349 SMC_SET_MAC_ADDR(lp, dev->dev_addr);
350
351
352 mask = IM_EPH_INT|IM_RX_OVRN_INT|IM_RCV_INT;
353 if (lp->version >= (CHIP_91100 << 4))
354 mask |= IM_MDINT;
355 SMC_SELECT_BANK(lp, 2);
356 SMC_SET_INT_MASK(lp, mask);
357
358
359
360
361
362
363
364}
365
366
367
368
369static void smc_shutdown(struct net_device *dev)
370{
371 struct smc_local *lp = netdev_priv(dev);
372 void __iomem *ioaddr = lp->base;
373 struct sk_buff *pending_skb;
374
375 DBG(2, "%s: %s\n", CARDNAME, __func__);
376
377
378 spin_lock_irq(&lp->lock);
379 SMC_SELECT_BANK(lp, 2);
380 SMC_SET_INT_MASK(lp, 0);
381 pending_skb = lp->pending_tx_skb;
382 lp->pending_tx_skb = NULL;
383 spin_unlock_irq(&lp->lock);
384 if (pending_skb)
385 dev_kfree_skb(pending_skb);
386
387
388 SMC_SELECT_BANK(lp, 0);
389 SMC_SET_RCR(lp, RCR_CLEAR);
390 SMC_SET_TCR(lp, TCR_CLEAR);
391
392#ifdef POWER_DOWN
393
394 SMC_SELECT_BANK(lp, 1);
395 SMC_SET_CONFIG(lp, SMC_GET_CONFIG(lp) & ~CONFIG_EPH_POWER_EN);
396#endif
397}
398
399
400
401
402static inline void smc_rcv(struct net_device *dev)
403{
404 struct smc_local *lp = netdev_priv(dev);
405 void __iomem *ioaddr = lp->base;
406 unsigned int packet_number, status, packet_len;
407
408 DBG(3, "%s: %s\n", dev->name, __func__);
409
410 packet_number = SMC_GET_RXFIFO(lp);
411 if (unlikely(packet_number & RXFIFO_REMPTY)) {
412 PRINTK("%s: smc_rcv with nothing on FIFO.\n", dev->name);
413 return;
414 }
415
416
417 SMC_SET_PTR(lp, PTR_READ | PTR_RCV | PTR_AUTOINC);
418
419
420 SMC_GET_PKT_HDR(lp, status, packet_len);
421 packet_len &= 0x07ff;
422 DBG(2, "%s: RX PNR 0x%x STATUS 0x%04x LENGTH 0x%04x (%d)\n",
423 dev->name, packet_number, status,
424 packet_len, packet_len);
425
426 back:
427 if (unlikely(packet_len < 6 || status & RS_ERRORS)) {
428 if (status & RS_TOOLONG && packet_len <= (1514 + 4 + 6)) {
429
430 status &= ~RS_TOOLONG;
431 goto back;
432 }
433 if (packet_len < 6) {
434
435 printk(KERN_ERR "%s: fubar (rxlen %u status %x\n",
436 dev->name, packet_len, status);
437 status |= RS_TOOSHORT;
438 }
439 SMC_WAIT_MMU_BUSY(lp);
440 SMC_SET_MMU_CMD(lp, MC_RELEASE);
441 dev->stats.rx_errors++;
442 if (status & RS_ALGNERR)
443 dev->stats.rx_frame_errors++;
444 if (status & (RS_TOOSHORT | RS_TOOLONG))
445 dev->stats.rx_length_errors++;
446 if (status & RS_BADCRC)
447 dev->stats.rx_crc_errors++;
448 } else {
449 struct sk_buff *skb;
450 unsigned char *data;
451 unsigned int data_len;
452
453
454 if (status & RS_MULTICAST)
455 dev->stats.multicast++;
456
457
458
459
460
461
462
463
464
465 skb = dev_alloc_skb(packet_len);
466 if (unlikely(skb == NULL)) {
467 printk(KERN_NOTICE "%s: Low memory, packet dropped.\n",
468 dev->name);
469 SMC_WAIT_MMU_BUSY(lp);
470 SMC_SET_MMU_CMD(lp, MC_RELEASE);
471 dev->stats.rx_dropped++;
472 return;
473 }
474
475
476 skb_reserve(skb, 2);
477
478
479 if (lp->version == 0x90)
480 status |= RS_ODDFRAME;
481
482
483
484
485
486
487 data_len = packet_len - ((status & RS_ODDFRAME) ? 5 : 6);
488 data = skb_put(skb, data_len);
489 SMC_PULL_DATA(lp, data, packet_len - 4);
490
491 SMC_WAIT_MMU_BUSY(lp);
492 SMC_SET_MMU_CMD(lp, MC_RELEASE);
493
494 PRINT_PKT(data, packet_len - 4);
495
496 skb->protocol = eth_type_trans(skb, dev);
497 netif_rx(skb);
498 dev->stats.rx_packets++;
499 dev->stats.rx_bytes += data_len;
500 }
501}
502
503#ifdef CONFIG_SMP
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525#define smc_special_trylock(lock, flags) \
526({ \
527 int __ret; \
528 local_irq_save(flags); \
529 __ret = spin_trylock(lock); \
530 if (!__ret) \
531 local_irq_restore(flags); \
532 __ret; \
533})
534#define smc_special_lock(lock, flags) spin_lock_irqsave(lock, flags)
535#define smc_special_unlock(lock, flags) spin_unlock_irqrestore(lock, flags)
536#else
537#define smc_special_trylock(lock, flags) (1)
538#define smc_special_lock(lock, flags) do { } while (0)
539#define smc_special_unlock(lock, flags) do { } while (0)
540#endif
541
542
543
544
545static void smc_hardware_send_pkt(unsigned long data)
546{
547 struct net_device *dev = (struct net_device *)data;
548 struct smc_local *lp = netdev_priv(dev);
549 void __iomem *ioaddr = lp->base;
550 struct sk_buff *skb;
551 unsigned int packet_no, len;
552 unsigned char *buf;
553 unsigned long flags;
554
555 DBG(3, "%s: %s\n", dev->name, __func__);
556
557 if (!smc_special_trylock(&lp->lock, flags)) {
558 netif_stop_queue(dev);
559 tasklet_schedule(&lp->tx_task);
560 return;
561 }
562
563 skb = lp->pending_tx_skb;
564 if (unlikely(!skb)) {
565 smc_special_unlock(&lp->lock, flags);
566 return;
567 }
568 lp->pending_tx_skb = NULL;
569
570 packet_no = SMC_GET_AR(lp);
571 if (unlikely(packet_no & AR_FAILED)) {
572 printk("%s: Memory allocation failed.\n", dev->name);
573 dev->stats.tx_errors++;
574 dev->stats.tx_fifo_errors++;
575 smc_special_unlock(&lp->lock, flags);
576 goto done;
577 }
578
579
580 SMC_SET_PN(lp, packet_no);
581 SMC_SET_PTR(lp, PTR_AUTOINC);
582
583 buf = skb->data;
584 len = skb->len;
585 DBG(2, "%s: TX PNR 0x%x LENGTH 0x%04x (%d) BUF 0x%p\n",
586 dev->name, packet_no, len, len, buf);
587 PRINT_PKT(buf, len);
588
589
590
591
592
593 SMC_PUT_PKT_HDR(lp, 0, len + 6);
594
595
596 SMC_PUSH_DATA(lp, buf, len & ~1);
597
598
599 SMC_outw(((len & 1) ? (0x2000 | buf[len-1]) : 0), ioaddr, DATA_REG(lp));
600
601
602
603
604
605
606
607
608
609 if (THROTTLE_TX_PKTS)
610 netif_stop_queue(dev);
611
612
613 SMC_SET_MMU_CMD(lp, MC_ENQUEUE);
614 smc_special_unlock(&lp->lock, flags);
615
616 dev->trans_start = jiffies;
617 dev->stats.tx_packets++;
618 dev->stats.tx_bytes += len;
619
620 SMC_ENABLE_INT(lp, IM_TX_INT | IM_TX_EMPTY_INT);
621
622done: if (!THROTTLE_TX_PKTS)
623 netif_wake_queue(dev);
624
625 dev_kfree_skb(skb);
626}
627
628
629
630
631
632
633
634static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
635{
636 struct smc_local *lp = netdev_priv(dev);
637 void __iomem *ioaddr = lp->base;
638 unsigned int numPages, poll_count, status;
639 unsigned long flags;
640
641 DBG(3, "%s: %s\n", dev->name, __func__);
642
643 BUG_ON(lp->pending_tx_skb != NULL);
644
645
646
647
648
649
650
651
652
653
654
655
656 numPages = ((skb->len & ~1) + (6 - 1)) >> 8;
657 if (unlikely(numPages > 7)) {
658 printk("%s: Far too big packet error.\n", dev->name);
659 dev->stats.tx_errors++;
660 dev->stats.tx_dropped++;
661 dev_kfree_skb(skb);
662 return NETDEV_TX_OK;
663 }
664
665 smc_special_lock(&lp->lock, flags);
666
667
668 SMC_SET_MMU_CMD(lp, MC_ALLOC | numPages);
669
670
671
672
673
674 poll_count = MEMORY_WAIT_TIME;
675 do {
676 status = SMC_GET_INT(lp);
677 if (status & IM_ALLOC_INT) {
678 SMC_ACK_INT(lp, IM_ALLOC_INT);
679 break;
680 }
681 } while (--poll_count);
682
683 smc_special_unlock(&lp->lock, flags);
684
685 lp->pending_tx_skb = skb;
686 if (!poll_count) {
687
688 netif_stop_queue(dev);
689 DBG(2, "%s: TX memory allocation deferred.\n", dev->name);
690 SMC_ENABLE_INT(lp, IM_ALLOC_INT);
691 } else {
692
693
694
695
696 smc_hardware_send_pkt((unsigned long)dev);
697 }
698
699 return NETDEV_TX_OK;
700}
701
702
703
704
705
706
707static void smc_tx(struct net_device *dev)
708{
709 struct smc_local *lp = netdev_priv(dev);
710 void __iomem *ioaddr = lp->base;
711 unsigned int saved_packet, packet_no, tx_status, pkt_len;
712
713 DBG(3, "%s: %s\n", dev->name, __func__);
714
715
716 packet_no = SMC_GET_TXFIFO(lp);
717 if (unlikely(packet_no & TXFIFO_TEMPTY)) {
718 PRINTK("%s: smc_tx with nothing on FIFO.\n", dev->name);
719 return;
720 }
721
722
723 saved_packet = SMC_GET_PN(lp);
724 SMC_SET_PN(lp, packet_no);
725
726
727 SMC_SET_PTR(lp, PTR_AUTOINC | PTR_READ);
728 SMC_GET_PKT_HDR(lp, tx_status, pkt_len);
729 DBG(2, "%s: TX STATUS 0x%04x PNR 0x%02x\n",
730 dev->name, tx_status, packet_no);
731
732 if (!(tx_status & ES_TX_SUC))
733 dev->stats.tx_errors++;
734
735 if (tx_status & ES_LOSTCARR)
736 dev->stats.tx_carrier_errors++;
737
738 if (tx_status & (ES_LATCOL | ES_16COL)) {
739 PRINTK("%s: %s occurred on last xmit\n", dev->name,
740 (tx_status & ES_LATCOL) ?
741 "late collision" : "too many collisions");
742 dev->stats.tx_window_errors++;
743 if (!(dev->stats.tx_window_errors & 63) && net_ratelimit()) {
744 printk(KERN_INFO "%s: unexpectedly large number of "
745 "bad collisions. Please check duplex "
746 "setting.\n", dev->name);
747 }
748 }
749
750
751 SMC_WAIT_MMU_BUSY(lp);
752 SMC_SET_MMU_CMD(lp, MC_FREEPKT);
753
754
755 SMC_WAIT_MMU_BUSY(lp);
756 SMC_SET_PN(lp, saved_packet);
757
758
759 SMC_SELECT_BANK(lp, 0);
760 SMC_SET_TCR(lp, lp->tcr_cur_mode);
761 SMC_SELECT_BANK(lp, 2);
762}
763
764
765
766
767static void smc_mii_out(struct net_device *dev, unsigned int val, int bits)
768{
769 struct smc_local *lp = netdev_priv(dev);
770 void __iomem *ioaddr = lp->base;
771 unsigned int mii_reg, mask;
772
773 mii_reg = SMC_GET_MII(lp) & ~(MII_MCLK | MII_MDOE | MII_MDO);
774 mii_reg |= MII_MDOE;
775
776 for (mask = 1 << (bits - 1); mask; mask >>= 1) {
777 if (val & mask)
778 mii_reg |= MII_MDO;
779 else
780 mii_reg &= ~MII_MDO;
781
782 SMC_SET_MII(lp, mii_reg);
783 udelay(MII_DELAY);
784 SMC_SET_MII(lp, mii_reg | MII_MCLK);
785 udelay(MII_DELAY);
786 }
787}
788
789static unsigned int smc_mii_in(struct net_device *dev, int bits)
790{
791 struct smc_local *lp = netdev_priv(dev);
792 void __iomem *ioaddr = lp->base;
793 unsigned int mii_reg, mask, val;
794
795 mii_reg = SMC_GET_MII(lp) & ~(MII_MCLK | MII_MDOE | MII_MDO);
796 SMC_SET_MII(lp, mii_reg);
797
798 for (mask = 1 << (bits - 1), val = 0; mask; mask >>= 1) {
799 if (SMC_GET_MII(lp) & MII_MDI)
800 val |= mask;
801
802 SMC_SET_MII(lp, mii_reg);
803 udelay(MII_DELAY);
804 SMC_SET_MII(lp, mii_reg | MII_MCLK);
805 udelay(MII_DELAY);
806 }
807
808 return val;
809}
810
811
812
813
814static int smc_phy_read(struct net_device *dev, int phyaddr, int phyreg)
815{
816 struct smc_local *lp = netdev_priv(dev);
817 void __iomem *ioaddr = lp->base;
818 unsigned int phydata;
819
820 SMC_SELECT_BANK(lp, 3);
821
822
823 smc_mii_out(dev, 0xffffffff, 32);
824
825
826 smc_mii_out(dev, 6 << 10 | phyaddr << 5 | phyreg, 14);
827
828
829 phydata = smc_mii_in(dev, 18);
830
831
832 SMC_SET_MII(lp, SMC_GET_MII(lp) & ~(MII_MCLK|MII_MDOE|MII_MDO));
833
834 DBG(3, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
835 __func__, phyaddr, phyreg, phydata);
836
837 SMC_SELECT_BANK(lp, 2);
838 return phydata;
839}
840
841
842
843
844static void smc_phy_write(struct net_device *dev, int phyaddr, int phyreg,
845 int phydata)
846{
847 struct smc_local *lp = netdev_priv(dev);
848 void __iomem *ioaddr = lp->base;
849
850 SMC_SELECT_BANK(lp, 3);
851
852
853 smc_mii_out(dev, 0xffffffff, 32);
854
855
856 smc_mii_out(dev, 5 << 28 | phyaddr << 23 | phyreg << 18 | 2 << 16 | phydata, 32);
857
858
859 SMC_SET_MII(lp, SMC_GET_MII(lp) & ~(MII_MCLK|MII_MDOE|MII_MDO));
860
861 DBG(3, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
862 __func__, phyaddr, phyreg, phydata);
863
864 SMC_SELECT_BANK(lp, 2);
865}
866
867
868
869
870static void smc_phy_detect(struct net_device *dev)
871{
872 struct smc_local *lp = netdev_priv(dev);
873 int phyaddr;
874
875 DBG(2, "%s: %s\n", dev->name, __func__);
876
877 lp->phy_type = 0;
878
879
880
881
882
883 for (phyaddr = 1; phyaddr < 33; ++phyaddr) {
884 unsigned int id1, id2;
885
886
887 id1 = smc_phy_read(dev, phyaddr & 31, MII_PHYSID1);
888 id2 = smc_phy_read(dev, phyaddr & 31, MII_PHYSID2);
889
890 DBG(3, "%s: phy_id1=0x%x, phy_id2=0x%x\n",
891 dev->name, id1, id2);
892
893
894 if (id1 != 0x0000 && id1 != 0xffff && id1 != 0x8000 &&
895 id2 != 0x0000 && id2 != 0xffff && id2 != 0x8000) {
896
897 lp->mii.phy_id = phyaddr & 31;
898 lp->phy_type = id1 << 16 | id2;
899 break;
900 }
901 }
902}
903
904
905
906
907static int smc_phy_fixed(struct net_device *dev)
908{
909 struct smc_local *lp = netdev_priv(dev);
910 void __iomem *ioaddr = lp->base;
911 int phyaddr = lp->mii.phy_id;
912 int bmcr, cfg1;
913
914 DBG(3, "%s: %s\n", dev->name, __func__);
915
916
917 cfg1 = smc_phy_read(dev, phyaddr, PHY_CFG1_REG);
918 cfg1 |= PHY_CFG1_LNKDIS;
919 smc_phy_write(dev, phyaddr, PHY_CFG1_REG, cfg1);
920
921
922
923
924
925 bmcr = 0;
926
927 if (lp->ctl_rfduplx)
928 bmcr |= BMCR_FULLDPLX;
929
930 if (lp->ctl_rspeed == 100)
931 bmcr |= BMCR_SPEED100;
932
933
934 smc_phy_write(dev, phyaddr, MII_BMCR, bmcr);
935
936
937 SMC_SELECT_BANK(lp, 0);
938 SMC_SET_RPC(lp, lp->rpc_cur_mode);
939 SMC_SELECT_BANK(lp, 2);
940
941 return 1;
942}
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957static int smc_phy_reset(struct net_device *dev, int phy)
958{
959 struct smc_local *lp = netdev_priv(dev);
960 unsigned int bmcr;
961 int timeout;
962
963 smc_phy_write(dev, phy, MII_BMCR, BMCR_RESET);
964
965 for (timeout = 2; timeout; timeout--) {
966 spin_unlock_irq(&lp->lock);
967 msleep(50);
968 spin_lock_irq(&lp->lock);
969
970 bmcr = smc_phy_read(dev, phy, MII_BMCR);
971 if (!(bmcr & BMCR_RESET))
972 break;
973 }
974
975 return bmcr & BMCR_RESET;
976}
977
978
979
980
981
982
983
984static void smc_phy_powerdown(struct net_device *dev)
985{
986 struct smc_local *lp = netdev_priv(dev);
987 unsigned int bmcr;
988 int phy = lp->mii.phy_id;
989
990 if (lp->phy_type == 0)
991 return;
992
993
994
995
996 cancel_work_sync(&lp->phy_configure);
997
998 bmcr = smc_phy_read(dev, phy, MII_BMCR);
999 smc_phy_write(dev, phy, MII_BMCR, bmcr | BMCR_PDOWN);
1000}
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010static void smc_phy_check_media(struct net_device *dev, int init)
1011{
1012 struct smc_local *lp = netdev_priv(dev);
1013 void __iomem *ioaddr = lp->base;
1014
1015 if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
1016
1017 if (lp->mii.full_duplex) {
1018 lp->tcr_cur_mode |= TCR_SWFDUP;
1019 } else {
1020 lp->tcr_cur_mode &= ~TCR_SWFDUP;
1021 }
1022
1023 SMC_SELECT_BANK(lp, 0);
1024 SMC_SET_TCR(lp, lp->tcr_cur_mode);
1025 }
1026}
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037static void smc_phy_configure(struct work_struct *work)
1038{
1039 struct smc_local *lp =
1040 container_of(work, struct smc_local, phy_configure);
1041 struct net_device *dev = lp->dev;
1042 void __iomem *ioaddr = lp->base;
1043 int phyaddr = lp->mii.phy_id;
1044 int my_phy_caps;
1045 int my_ad_caps;
1046 int status;
1047
1048 DBG(3, "%s:smc_program_phy()\n", dev->name);
1049
1050 spin_lock_irq(&lp->lock);
1051
1052
1053
1054
1055 if (lp->phy_type == 0)
1056 goto smc_phy_configure_exit;
1057
1058 if (smc_phy_reset(dev, phyaddr)) {
1059 printk("%s: PHY reset timed out\n", dev->name);
1060 goto smc_phy_configure_exit;
1061 }
1062
1063
1064
1065
1066
1067 smc_phy_write(dev, phyaddr, PHY_MASK_REG,
1068 PHY_INT_LOSSSYNC | PHY_INT_CWRD | PHY_INT_SSD |
1069 PHY_INT_ESD | PHY_INT_RPOL | PHY_INT_JAB |
1070 PHY_INT_SPDDET | PHY_INT_DPLXDET);
1071
1072
1073 SMC_SELECT_BANK(lp, 0);
1074 SMC_SET_RPC(lp, lp->rpc_cur_mode);
1075
1076
1077 if (lp->mii.force_media) {
1078 smc_phy_fixed(dev);
1079 goto smc_phy_configure_exit;
1080 }
1081
1082
1083 my_phy_caps = smc_phy_read(dev, phyaddr, MII_BMSR);
1084
1085 if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
1086 printk(KERN_INFO "Auto negotiation NOT supported\n");
1087 smc_phy_fixed(dev);
1088 goto smc_phy_configure_exit;
1089 }
1090
1091 my_ad_caps = ADVERTISE_CSMA;
1092
1093 if (my_phy_caps & BMSR_100BASE4)
1094 my_ad_caps |= ADVERTISE_100BASE4;
1095 if (my_phy_caps & BMSR_100FULL)
1096 my_ad_caps |= ADVERTISE_100FULL;
1097 if (my_phy_caps & BMSR_100HALF)
1098 my_ad_caps |= ADVERTISE_100HALF;
1099 if (my_phy_caps & BMSR_10FULL)
1100 my_ad_caps |= ADVERTISE_10FULL;
1101 if (my_phy_caps & BMSR_10HALF)
1102 my_ad_caps |= ADVERTISE_10HALF;
1103
1104
1105 if (lp->ctl_rspeed != 100)
1106 my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF);
1107
1108 if (!lp->ctl_rfduplx)
1109 my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL);
1110
1111
1112 smc_phy_write(dev, phyaddr, MII_ADVERTISE, my_ad_caps);
1113 lp->mii.advertising = my_ad_caps;
1114
1115
1116
1117
1118
1119
1120 status = smc_phy_read(dev, phyaddr, MII_ADVERTISE);
1121
1122 DBG(2, "%s: phy caps=%x\n", dev->name, my_phy_caps);
1123 DBG(2, "%s: phy advertised caps=%x\n", dev->name, my_ad_caps);
1124
1125
1126 smc_phy_write(dev, phyaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
1127
1128 smc_phy_check_media(dev, 1);
1129
1130smc_phy_configure_exit:
1131 SMC_SELECT_BANK(lp, 2);
1132 spin_unlock_irq(&lp->lock);
1133}
1134
1135
1136
1137
1138
1139
1140
1141static void smc_phy_interrupt(struct net_device *dev)
1142{
1143 struct smc_local *lp = netdev_priv(dev);
1144 int phyaddr = lp->mii.phy_id;
1145 int phy18;
1146
1147 DBG(2, "%s: %s\n", dev->name, __func__);
1148
1149 if (lp->phy_type == 0)
1150 return;
1151
1152 for(;;) {
1153 smc_phy_check_media(dev, 0);
1154
1155
1156 phy18 = smc_phy_read(dev, phyaddr, PHY_INT_REG);
1157 if ((phy18 & PHY_INT_INT) == 0)
1158 break;
1159 }
1160}
1161
1162
1163
1164static void smc_10bt_check_media(struct net_device *dev, int init)
1165{
1166 struct smc_local *lp = netdev_priv(dev);
1167 void __iomem *ioaddr = lp->base;
1168 unsigned int old_carrier, new_carrier;
1169
1170 old_carrier = netif_carrier_ok(dev) ? 1 : 0;
1171
1172 SMC_SELECT_BANK(lp, 0);
1173 new_carrier = (SMC_GET_EPH_STATUS(lp) & ES_LINK_OK) ? 1 : 0;
1174 SMC_SELECT_BANK(lp, 2);
1175
1176 if (init || (old_carrier != new_carrier)) {
1177 if (!new_carrier) {
1178 netif_carrier_off(dev);
1179 } else {
1180 netif_carrier_on(dev);
1181 }
1182 if (netif_msg_link(lp))
1183 printk(KERN_INFO "%s: link %s\n", dev->name,
1184 new_carrier ? "up" : "down");
1185 }
1186}
1187
1188static void smc_eph_interrupt(struct net_device *dev)
1189{
1190 struct smc_local *lp = netdev_priv(dev);
1191 void __iomem *ioaddr = lp->base;
1192 unsigned int ctl;
1193
1194 smc_10bt_check_media(dev, 0);
1195
1196 SMC_SELECT_BANK(lp, 1);
1197 ctl = SMC_GET_CTL(lp);
1198 SMC_SET_CTL(lp, ctl & ~CTL_LE_ENABLE);
1199 SMC_SET_CTL(lp, ctl);
1200 SMC_SELECT_BANK(lp, 2);
1201}
1202
1203
1204
1205
1206
1207static irqreturn_t smc_interrupt(int irq, void *dev_id)
1208{
1209 struct net_device *dev = dev_id;
1210 struct smc_local *lp = netdev_priv(dev);
1211 void __iomem *ioaddr = lp->base;
1212 int status, mask, timeout, card_stats;
1213 int saved_pointer;
1214
1215 DBG(3, "%s: %s\n", dev->name, __func__);
1216
1217 spin_lock(&lp->lock);
1218
1219
1220
1221
1222 SMC_INTERRUPT_PREAMBLE;
1223
1224 saved_pointer = SMC_GET_PTR(lp);
1225 mask = SMC_GET_INT_MASK(lp);
1226 SMC_SET_INT_MASK(lp, 0);
1227
1228
1229 timeout = MAX_IRQ_LOOPS;
1230
1231 do {
1232 status = SMC_GET_INT(lp);
1233
1234 DBG(2, "%s: INT 0x%02x MASK 0x%02x MEM 0x%04x FIFO 0x%04x\n",
1235 dev->name, status, mask,
1236 ({ int meminfo; SMC_SELECT_BANK(lp, 0);
1237 meminfo = SMC_GET_MIR(lp);
1238 SMC_SELECT_BANK(lp, 2); meminfo; }),
1239 SMC_GET_FIFO(lp));
1240
1241 status &= mask;
1242 if (!status)
1243 break;
1244
1245 if (status & IM_TX_INT) {
1246
1247 DBG(3, "%s: TX int\n", dev->name);
1248 smc_tx(dev);
1249 SMC_ACK_INT(lp, IM_TX_INT);
1250 if (THROTTLE_TX_PKTS)
1251 netif_wake_queue(dev);
1252 } else if (status & IM_RCV_INT) {
1253 DBG(3, "%s: RX irq\n", dev->name);
1254 smc_rcv(dev);
1255 } else if (status & IM_ALLOC_INT) {
1256 DBG(3, "%s: Allocation irq\n", dev->name);
1257 tasklet_hi_schedule(&lp->tx_task);
1258 mask &= ~IM_ALLOC_INT;
1259 } else if (status & IM_TX_EMPTY_INT) {
1260 DBG(3, "%s: TX empty\n", dev->name);
1261 mask &= ~IM_TX_EMPTY_INT;
1262
1263
1264 SMC_SELECT_BANK(lp, 0);
1265 card_stats = SMC_GET_COUNTER(lp);
1266 SMC_SELECT_BANK(lp, 2);
1267
1268
1269 dev->stats.collisions += card_stats & 0xF;
1270 card_stats >>= 4;
1271
1272
1273 dev->stats.collisions += card_stats & 0xF;
1274 } else if (status & IM_RX_OVRN_INT) {
1275 DBG(1, "%s: RX overrun (EPH_ST 0x%04x)\n", dev->name,
1276 ({ int eph_st; SMC_SELECT_BANK(lp, 0);
1277 eph_st = SMC_GET_EPH_STATUS(lp);
1278 SMC_SELECT_BANK(lp, 2); eph_st; }));
1279 SMC_ACK_INT(lp, IM_RX_OVRN_INT);
1280 dev->stats.rx_errors++;
1281 dev->stats.rx_fifo_errors++;
1282 } else if (status & IM_EPH_INT) {
1283 smc_eph_interrupt(dev);
1284 } else if (status & IM_MDINT) {
1285 SMC_ACK_INT(lp, IM_MDINT);
1286 smc_phy_interrupt(dev);
1287 } else if (status & IM_ERCV_INT) {
1288 SMC_ACK_INT(lp, IM_ERCV_INT);
1289 PRINTK("%s: UNSUPPORTED: ERCV INTERRUPT \n", dev->name);
1290 }
1291 } while (--timeout);
1292
1293
1294 SMC_SET_PTR(lp, saved_pointer);
1295 SMC_SET_INT_MASK(lp, mask);
1296 spin_unlock(&lp->lock);
1297
1298#ifndef CONFIG_NET_POLL_CONTROLLER
1299 if (timeout == MAX_IRQ_LOOPS)
1300 PRINTK("%s: spurious interrupt (mask = 0x%02x)\n",
1301 dev->name, mask);
1302#endif
1303 DBG(3, "%s: Interrupt done (%d loops)\n",
1304 dev->name, MAX_IRQ_LOOPS - timeout);
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314 return IRQ_HANDLED;
1315}
1316
1317#ifdef CONFIG_NET_POLL_CONTROLLER
1318
1319
1320
1321
1322static void smc_poll_controller(struct net_device *dev)
1323{
1324 disable_irq(dev->irq);
1325 smc_interrupt(dev->irq, dev);
1326 enable_irq(dev->irq);
1327}
1328#endif
1329
1330
1331static void smc_timeout(struct net_device *dev)
1332{
1333 struct smc_local *lp = netdev_priv(dev);
1334 void __iomem *ioaddr = lp->base;
1335 int status, mask, eph_st, meminfo, fifo;
1336
1337 DBG(2, "%s: %s\n", dev->name, __func__);
1338
1339 spin_lock_irq(&lp->lock);
1340 status = SMC_GET_INT(lp);
1341 mask = SMC_GET_INT_MASK(lp);
1342 fifo = SMC_GET_FIFO(lp);
1343 SMC_SELECT_BANK(lp, 0);
1344 eph_st = SMC_GET_EPH_STATUS(lp);
1345 meminfo = SMC_GET_MIR(lp);
1346 SMC_SELECT_BANK(lp, 2);
1347 spin_unlock_irq(&lp->lock);
1348 PRINTK( "%s: TX timeout (INT 0x%02x INTMASK 0x%02x "
1349 "MEM 0x%04x FIFO 0x%04x EPH_ST 0x%04x)\n",
1350 dev->name, status, mask, meminfo, fifo, eph_st );
1351
1352 smc_reset(dev);
1353 smc_enable(dev);
1354
1355
1356
1357
1358
1359
1360 if (lp->phy_type != 0)
1361 schedule_work(&lp->phy_configure);
1362
1363
1364 dev->trans_start = jiffies;
1365 netif_wake_queue(dev);
1366}
1367
1368
1369
1370
1371
1372
1373
1374static void smc_set_multicast_list(struct net_device *dev)
1375{
1376 struct smc_local *lp = netdev_priv(dev);
1377 void __iomem *ioaddr = lp->base;
1378 unsigned char multicast_table[8];
1379 int update_multicast = 0;
1380
1381 DBG(2, "%s: %s\n", dev->name, __func__);
1382
1383 if (dev->flags & IFF_PROMISC) {
1384 DBG(2, "%s: RCR_PRMS\n", dev->name);
1385 lp->rcr_cur_mode |= RCR_PRMS;
1386 }
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398 else if (dev->flags & IFF_ALLMULTI || dev->mc_count > 16) {
1399 DBG(2, "%s: RCR_ALMUL\n", dev->name);
1400 lp->rcr_cur_mode |= RCR_ALMUL;
1401 }
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415 else if (dev->mc_count) {
1416 int i;
1417 struct dev_mc_list *cur_addr;
1418
1419
1420 static const unsigned char invert3[] = {0, 4, 2, 6, 1, 5, 3, 7};
1421
1422
1423 memset(multicast_table, 0, sizeof(multicast_table));
1424
1425 cur_addr = dev->mc_list;
1426 for (i = 0; i < dev->mc_count; i++, cur_addr = cur_addr->next) {
1427 int position;
1428
1429
1430 if (!cur_addr)
1431 break;
1432
1433
1434 if (!(*cur_addr->dmi_addr & 1))
1435 continue;
1436
1437
1438 position = crc32_le(~0, cur_addr->dmi_addr, 6) & 0x3f;
1439
1440
1441 multicast_table[invert3[position&7]] |=
1442 (1<<invert3[(position>>3)&7]);
1443 }
1444
1445
1446 lp->rcr_cur_mode &= ~(RCR_PRMS | RCR_ALMUL);
1447
1448
1449 update_multicast = 1;
1450 } else {
1451 DBG(2, "%s: ~(RCR_PRMS|RCR_ALMUL)\n", dev->name);
1452 lp->rcr_cur_mode &= ~(RCR_PRMS | RCR_ALMUL);
1453
1454
1455
1456
1457
1458 memset(multicast_table, 0, sizeof(multicast_table));
1459 update_multicast = 1;
1460 }
1461
1462 spin_lock_irq(&lp->lock);
1463 SMC_SELECT_BANK(lp, 0);
1464 SMC_SET_RCR(lp, lp->rcr_cur_mode);
1465 if (update_multicast) {
1466 SMC_SELECT_BANK(lp, 3);
1467 SMC_SET_MCAST(lp, multicast_table);
1468 }
1469 SMC_SELECT_BANK(lp, 2);
1470 spin_unlock_irq(&lp->lock);
1471}
1472
1473
1474
1475
1476
1477
1478
1479static int
1480smc_open(struct net_device *dev)
1481{
1482 struct smc_local *lp = netdev_priv(dev);
1483
1484 DBG(2, "%s: %s\n", dev->name, __func__);
1485
1486
1487
1488
1489
1490
1491 if (!is_valid_ether_addr(dev->dev_addr)) {
1492 PRINTK("%s: no valid ethernet hw addr\n", __func__);
1493 return -EINVAL;
1494 }
1495
1496
1497 lp->tcr_cur_mode = TCR_DEFAULT;
1498 lp->rcr_cur_mode = RCR_DEFAULT;
1499 lp->rpc_cur_mode = RPC_DEFAULT |
1500 lp->cfg.leda << RPC_LSXA_SHFT |
1501 lp->cfg.ledb << RPC_LSXB_SHFT;
1502
1503
1504
1505
1506
1507 if (lp->phy_type == 0)
1508 lp->tcr_cur_mode |= TCR_MON_CSN;
1509
1510
1511 smc_reset(dev);
1512 smc_enable(dev);
1513
1514
1515 if (lp->phy_type != 0)
1516 smc_phy_configure(&lp->phy_configure);
1517 else {
1518 spin_lock_irq(&lp->lock);
1519 smc_10bt_check_media(dev, 1);
1520 spin_unlock_irq(&lp->lock);
1521 }
1522
1523 netif_start_queue(dev);
1524 return 0;
1525}
1526
1527
1528
1529
1530
1531
1532
1533
1534static int smc_close(struct net_device *dev)
1535{
1536 struct smc_local *lp = netdev_priv(dev);
1537
1538 DBG(2, "%s: %s\n", dev->name, __func__);
1539
1540 netif_stop_queue(dev);
1541 netif_carrier_off(dev);
1542
1543
1544 smc_shutdown(dev);
1545 tasklet_kill(&lp->tx_task);
1546 smc_phy_powerdown(dev);
1547 return 0;
1548}
1549
1550
1551
1552
1553static int
1554smc_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1555{
1556 struct smc_local *lp = netdev_priv(dev);
1557 int ret;
1558
1559 cmd->maxtxpkt = 1;
1560 cmd->maxrxpkt = 1;
1561
1562 if (lp->phy_type != 0) {
1563 spin_lock_irq(&lp->lock);
1564 ret = mii_ethtool_gset(&lp->mii, cmd);
1565 spin_unlock_irq(&lp->lock);
1566 } else {
1567 cmd->supported = SUPPORTED_10baseT_Half |
1568 SUPPORTED_10baseT_Full |
1569 SUPPORTED_TP | SUPPORTED_AUI;
1570
1571 if (lp->ctl_rspeed == 10)
1572 cmd->speed = SPEED_10;
1573 else if (lp->ctl_rspeed == 100)
1574 cmd->speed = SPEED_100;
1575
1576 cmd->autoneg = AUTONEG_DISABLE;
1577 cmd->transceiver = XCVR_INTERNAL;
1578 cmd->port = 0;
1579 cmd->duplex = lp->tcr_cur_mode & TCR_SWFDUP ? DUPLEX_FULL : DUPLEX_HALF;
1580
1581 ret = 0;
1582 }
1583
1584 return ret;
1585}
1586
1587static int
1588smc_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1589{
1590 struct smc_local *lp = netdev_priv(dev);
1591 int ret;
1592
1593 if (lp->phy_type != 0) {
1594 spin_lock_irq(&lp->lock);
1595 ret = mii_ethtool_sset(&lp->mii, cmd);
1596 spin_unlock_irq(&lp->lock);
1597 } else {
1598 if (cmd->autoneg != AUTONEG_DISABLE ||
1599 cmd->speed != SPEED_10 ||
1600 (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) ||
1601 (cmd->port != PORT_TP && cmd->port != PORT_AUI))
1602 return -EINVAL;
1603
1604
1605 lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL;
1606
1607
1608
1609
1610 ret = 0;
1611 }
1612
1613 return ret;
1614}
1615
1616static void
1617smc_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1618{
1619 strncpy(info->driver, CARDNAME, sizeof(info->driver));
1620 strncpy(info->version, version, sizeof(info->version));
1621 strncpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info));
1622}
1623
1624static int smc_ethtool_nwayreset(struct net_device *dev)
1625{
1626 struct smc_local *lp = netdev_priv(dev);
1627 int ret = -EINVAL;
1628
1629 if (lp->phy_type != 0) {
1630 spin_lock_irq(&lp->lock);
1631 ret = mii_nway_restart(&lp->mii);
1632 spin_unlock_irq(&lp->lock);
1633 }
1634
1635 return ret;
1636}
1637
1638static u32 smc_ethtool_getmsglevel(struct net_device *dev)
1639{
1640 struct smc_local *lp = netdev_priv(dev);
1641 return lp->msg_enable;
1642}
1643
1644static void smc_ethtool_setmsglevel(struct net_device *dev, u32 level)
1645{
1646 struct smc_local *lp = netdev_priv(dev);
1647 lp->msg_enable = level;
1648}
1649
1650static int smc_write_eeprom_word(struct net_device *dev, u16 addr, u16 word)
1651{
1652 u16 ctl;
1653 struct smc_local *lp = netdev_priv(dev);
1654 void __iomem *ioaddr = lp->base;
1655
1656 spin_lock_irq(&lp->lock);
1657
1658 SMC_SELECT_BANK(lp, 1);
1659 SMC_SET_GP(lp, word);
1660
1661 SMC_SELECT_BANK(lp, 2);
1662 SMC_SET_PTR(lp, addr);
1663
1664 SMC_SELECT_BANK(lp, 1);
1665 ctl = SMC_GET_CTL(lp);
1666 SMC_SET_CTL(lp, ctl | (CTL_EEPROM_SELECT | CTL_STORE));
1667
1668 do {
1669 udelay(1);
1670 } while (SMC_GET_CTL(lp) & CTL_STORE);
1671
1672 SMC_SET_CTL(lp, ctl);
1673 SMC_SELECT_BANK(lp, 2);
1674 spin_unlock_irq(&lp->lock);
1675 return 0;
1676}
1677
1678static int smc_read_eeprom_word(struct net_device *dev, u16 addr, u16 *word)
1679{
1680 u16 ctl;
1681 struct smc_local *lp = netdev_priv(dev);
1682 void __iomem *ioaddr = lp->base;
1683
1684 spin_lock_irq(&lp->lock);
1685
1686 SMC_SELECT_BANK(lp, 2);
1687 SMC_SET_PTR(lp, addr | PTR_READ);
1688
1689 SMC_SELECT_BANK(lp, 1);
1690 SMC_SET_GP(lp, 0xffff);
1691 ctl = SMC_GET_CTL(lp);
1692 SMC_SET_CTL(lp, ctl | (CTL_EEPROM_SELECT | CTL_RELOAD));
1693
1694 do {
1695 udelay(1);
1696 } while (SMC_GET_CTL(lp) & CTL_RELOAD);
1697
1698 *word = SMC_GET_GP(lp);
1699
1700 SMC_SET_CTL(lp, ctl);
1701 SMC_SELECT_BANK(lp, 2);
1702 spin_unlock_irq(&lp->lock);
1703 return 0;
1704}
1705
1706static int smc_ethtool_geteeprom_len(struct net_device *dev)
1707{
1708 return 0x23 * 2;
1709}
1710
1711static int smc_ethtool_geteeprom(struct net_device *dev,
1712 struct ethtool_eeprom *eeprom, u8 *data)
1713{
1714 int i;
1715 int imax;
1716
1717 DBG(1, "Reading %d bytes at %d(0x%x)\n",
1718 eeprom->len, eeprom->offset, eeprom->offset);
1719 imax = smc_ethtool_geteeprom_len(dev);
1720 for (i = 0; i < eeprom->len; i += 2) {
1721 int ret;
1722 u16 wbuf;
1723 int offset = i + eeprom->offset;
1724 if (offset > imax)
1725 break;
1726 ret = smc_read_eeprom_word(dev, offset >> 1, &wbuf);
1727 if (ret != 0)
1728 return ret;
1729 DBG(2, "Read 0x%x from 0x%x\n", wbuf, offset >> 1);
1730 data[i] = (wbuf >> 8) & 0xff;
1731 data[i+1] = wbuf & 0xff;
1732 }
1733 return 0;
1734}
1735
1736static int smc_ethtool_seteeprom(struct net_device *dev,
1737 struct ethtool_eeprom *eeprom, u8 *data)
1738{
1739 int i;
1740 int imax;
1741
1742 DBG(1, "Writing %d bytes to %d(0x%x)\n",
1743 eeprom->len, eeprom->offset, eeprom->offset);
1744 imax = smc_ethtool_geteeprom_len(dev);
1745 for (i = 0; i < eeprom->len; i += 2) {
1746 int ret;
1747 u16 wbuf;
1748 int offset = i + eeprom->offset;
1749 if (offset > imax)
1750 break;
1751 wbuf = (data[i] << 8) | data[i + 1];
1752 DBG(2, "Writing 0x%x to 0x%x\n", wbuf, offset >> 1);
1753 ret = smc_write_eeprom_word(dev, offset >> 1, wbuf);
1754 if (ret != 0)
1755 return ret;
1756 }
1757 return 0;
1758}
1759
1760
1761static const struct ethtool_ops smc_ethtool_ops = {
1762 .get_settings = smc_ethtool_getsettings,
1763 .set_settings = smc_ethtool_setsettings,
1764 .get_drvinfo = smc_ethtool_getdrvinfo,
1765
1766 .get_msglevel = smc_ethtool_getmsglevel,
1767 .set_msglevel = smc_ethtool_setmsglevel,
1768 .nway_reset = smc_ethtool_nwayreset,
1769 .get_link = ethtool_op_get_link,
1770 .get_eeprom_len = smc_ethtool_geteeprom_len,
1771 .get_eeprom = smc_ethtool_geteeprom,
1772 .set_eeprom = smc_ethtool_seteeprom,
1773};
1774
1775static const struct net_device_ops smc_netdev_ops = {
1776 .ndo_open = smc_open,
1777 .ndo_stop = smc_close,
1778 .ndo_start_xmit = smc_hard_start_xmit,
1779 .ndo_tx_timeout = smc_timeout,
1780 .ndo_set_multicast_list = smc_set_multicast_list,
1781 .ndo_change_mtu = eth_change_mtu,
1782 .ndo_validate_addr = eth_validate_addr,
1783 .ndo_set_mac_address = eth_mac_addr,
1784#ifdef CONFIG_NET_POLL_CONTROLLER
1785 .ndo_poll_controller = smc_poll_controller,
1786#endif
1787};
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801static int __devinit smc_findirq(struct smc_local *lp)
1802{
1803 void __iomem *ioaddr = lp->base;
1804 int timeout = 20;
1805 unsigned long cookie;
1806
1807 DBG(2, "%s: %s\n", CARDNAME, __func__);
1808
1809 cookie = probe_irq_on();
1810
1811
1812
1813
1814
1815
1816
1817 SMC_SELECT_BANK(lp, 2);
1818 SMC_SET_INT_MASK(lp, IM_ALLOC_INT);
1819
1820
1821
1822
1823
1824 SMC_SET_MMU_CMD(lp, MC_ALLOC | 1);
1825
1826
1827
1828
1829 do {
1830 int int_status;
1831 udelay(10);
1832 int_status = SMC_GET_INT(lp);
1833 if (int_status & IM_ALLOC_INT)
1834 break;
1835 } while (--timeout);
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845 SMC_SET_INT_MASK(lp, 0);
1846
1847
1848 return probe_irq_off(cookie);
1849}
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875static int __devinit smc_probe(struct net_device *dev, void __iomem *ioaddr,
1876 unsigned long irq_flags)
1877{
1878 struct smc_local *lp = netdev_priv(dev);
1879 static int version_printed = 0;
1880 int retval;
1881 unsigned int val, revision_register;
1882 const char *version_string;
1883
1884 DBG(2, "%s: %s\n", CARDNAME, __func__);
1885
1886
1887 val = SMC_CURRENT_BANK(lp);
1888 DBG(2, "%s: bank signature probe returned 0x%04x\n", CARDNAME, val);
1889 if ((val & 0xFF00) != 0x3300) {
1890 if ((val & 0xFF) == 0x33) {
1891 printk(KERN_WARNING
1892 "%s: Detected possible byte-swapped interface"
1893 " at IOADDR %p\n", CARDNAME, ioaddr);
1894 }
1895 retval = -ENODEV;
1896 goto err_out;
1897 }
1898
1899
1900
1901
1902
1903 SMC_SELECT_BANK(lp, 0);
1904 val = SMC_CURRENT_BANK(lp);
1905 if ((val & 0xFF00) != 0x3300) {
1906 retval = -ENODEV;
1907 goto err_out;
1908 }
1909
1910
1911
1912
1913
1914
1915
1916 SMC_SELECT_BANK(lp, 1);
1917 val = SMC_GET_BASE(lp);
1918 val = ((val & 0x1F00) >> 3) << SMC_IO_SHIFT;
1919 if (((unsigned int)ioaddr & (0x3e0 << SMC_IO_SHIFT)) != val) {
1920 printk("%s: IOADDR %p doesn't match configuration (%x).\n",
1921 CARDNAME, ioaddr, val);
1922 }
1923
1924
1925
1926
1927
1928
1929 SMC_SELECT_BANK(lp, 3);
1930 revision_register = SMC_GET_REV(lp);
1931 DBG(2, "%s: revision = 0x%04x\n", CARDNAME, revision_register);
1932 version_string = chip_ids[ (revision_register >> 4) & 0xF];
1933 if (!version_string || (revision_register & 0xff00) != 0x3300) {
1934
1935 printk("%s: IO %p: Unrecognized revision register 0x%04x"
1936 ", Contact author.\n", CARDNAME,
1937 ioaddr, revision_register);
1938
1939 retval = -ENODEV;
1940 goto err_out;
1941 }
1942
1943
1944 if (version_printed++ == 0)
1945 printk("%s", version);
1946
1947
1948 dev->base_addr = (unsigned long)ioaddr;
1949 lp->base = ioaddr;
1950 lp->version = revision_register & 0xff;
1951 spin_lock_init(&lp->lock);
1952
1953
1954 SMC_SELECT_BANK(lp, 1);
1955 SMC_GET_MAC_ADDR(lp, dev->dev_addr);
1956
1957
1958 smc_reset(dev);
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975 if (dev->irq < 1) {
1976 int trials;
1977
1978 trials = 3;
1979 while (trials--) {
1980 dev->irq = smc_findirq(lp);
1981 if (dev->irq)
1982 break;
1983
1984 smc_reset(dev);
1985 }
1986 }
1987 if (dev->irq == 0) {
1988 printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
1989 dev->name);
1990 retval = -ENODEV;
1991 goto err_out;
1992 }
1993 dev->irq = irq_canonicalize(dev->irq);
1994
1995
1996 ether_setup(dev);
1997
1998 dev->watchdog_timeo = msecs_to_jiffies(watchdog);
1999 dev->netdev_ops = &smc_netdev_ops;
2000 dev->ethtool_ops = &smc_ethtool_ops;
2001
2002 tasklet_init(&lp->tx_task, smc_hardware_send_pkt, (unsigned long)dev);
2003 INIT_WORK(&lp->phy_configure, smc_phy_configure);
2004 lp->dev = dev;
2005 lp->mii.phy_id_mask = 0x1f;
2006 lp->mii.reg_num_mask = 0x1f;
2007 lp->mii.force_media = 0;
2008 lp->mii.full_duplex = 0;
2009 lp->mii.dev = dev;
2010 lp->mii.mdio_read = smc_phy_read;
2011 lp->mii.mdio_write = smc_phy_write;
2012
2013
2014
2015
2016 if (lp->version >= (CHIP_91100 << 4))
2017 smc_phy_detect(dev);
2018
2019
2020 smc_shutdown(dev);
2021 smc_phy_powerdown(dev);
2022
2023
2024 lp->msg_enable = NETIF_MSG_LINK;
2025 lp->ctl_rfduplx = 0;
2026 lp->ctl_rspeed = 10;
2027
2028 if (lp->version >= (CHIP_91100 << 4)) {
2029 lp->ctl_rfduplx = 1;
2030 lp->ctl_rspeed = 100;
2031 }
2032
2033
2034 retval = request_irq(dev->irq, &smc_interrupt, irq_flags, dev->name, dev);
2035 if (retval)
2036 goto err_out;
2037
2038#ifdef CONFIG_ARCH_PXA
2039# ifdef SMC_USE_PXA_DMA
2040 lp->cfg.flags |= SMC91X_USE_DMA;
2041# endif
2042 if (lp->cfg.flags & SMC91X_USE_DMA) {
2043 int dma = pxa_request_dma(dev->name, DMA_PRIO_LOW,
2044 smc_pxa_dma_irq, NULL);
2045 if (dma >= 0)
2046 dev->dma = dma;
2047 }
2048#endif
2049
2050 retval = register_netdev(dev);
2051 if (retval == 0) {
2052
2053 printk("%s: %s (rev %d) at %p IRQ %d",
2054 dev->name, version_string, revision_register & 0x0f,
2055 lp->base, dev->irq);
2056
2057 if (dev->dma != (unsigned char)-1)
2058 printk(" DMA %d", dev->dma);
2059
2060 printk("%s%s\n",
2061 lp->cfg.flags & SMC91X_NOWAIT ? " [nowait]" : "",
2062 THROTTLE_TX_PKTS ? " [throttle_tx]" : "");
2063
2064 if (!is_valid_ether_addr(dev->dev_addr)) {
2065 printk("%s: Invalid ethernet MAC address. Please "
2066 "set using ifconfig\n", dev->name);
2067 } else {
2068
2069 printk("%s: Ethernet addr: %pM\n",
2070 dev->name, dev->dev_addr);
2071 }
2072
2073 if (lp->phy_type == 0) {
2074 PRINTK("%s: No PHY found\n", dev->name);
2075 } else if ((lp->phy_type & 0xfffffff0) == 0x0016f840) {
2076 PRINTK("%s: PHY LAN83C183 (LAN91C111 Internal)\n", dev->name);
2077 } else if ((lp->phy_type & 0xfffffff0) == 0x02821c50) {
2078 PRINTK("%s: PHY LAN83C180\n", dev->name);
2079 }
2080 }
2081
2082err_out:
2083#ifdef CONFIG_ARCH_PXA
2084 if (retval && dev->dma != (unsigned char)-1)
2085 pxa_free_dma(dev->dma);
2086#endif
2087 return retval;
2088}
2089
2090static int smc_enable_device(struct platform_device *pdev)
2091{
2092 struct net_device *ndev = platform_get_drvdata(pdev);
2093 struct smc_local *lp = netdev_priv(ndev);
2094 unsigned long flags;
2095 unsigned char ecor, ecsr;
2096 void __iomem *addr;
2097 struct resource * res;
2098
2099 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
2100 if (!res)
2101 return 0;
2102
2103
2104
2105
2106 addr = ioremap(res->start, ATTRIB_SIZE);
2107 if (!addr)
2108 return -ENOMEM;
2109
2110
2111
2112
2113
2114 local_irq_save(flags);
2115 ecor = readb(addr + (ECOR << SMC_IO_SHIFT)) & ~ECOR_RESET;
2116 writeb(ecor | ECOR_RESET, addr + (ECOR << SMC_IO_SHIFT));
2117 readb(addr + (ECOR << SMC_IO_SHIFT));
2118
2119
2120
2121
2122 udelay(100);
2123
2124
2125
2126
2127
2128
2129 writeb(ecor, addr + (ECOR << SMC_IO_SHIFT));
2130 writeb(ecor | ECOR_ENABLE, addr + (ECOR << SMC_IO_SHIFT));
2131
2132
2133
2134
2135 ecsr = readb(addr + (ECSR << SMC_IO_SHIFT)) & ~ECSR_IOIS8;
2136 if (!SMC_16BIT(lp))
2137 ecsr |= ECSR_IOIS8;
2138 writeb(ecsr, addr + (ECSR << SMC_IO_SHIFT));
2139 local_irq_restore(flags);
2140
2141 iounmap(addr);
2142
2143
2144
2145
2146
2147
2148 msleep(1);
2149
2150 return 0;
2151}
2152
2153static int smc_request_attrib(struct platform_device *pdev,
2154 struct net_device *ndev)
2155{
2156 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
2157 struct smc_local *lp __maybe_unused = netdev_priv(ndev);
2158
2159 if (!res)
2160 return 0;
2161
2162 if (!request_mem_region(res->start, ATTRIB_SIZE, CARDNAME))
2163 return -EBUSY;
2164
2165 return 0;
2166}
2167
2168static void smc_release_attrib(struct platform_device *pdev,
2169 struct net_device *ndev)
2170{
2171 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
2172 struct smc_local *lp __maybe_unused = netdev_priv(ndev);
2173
2174 if (res)
2175 release_mem_region(res->start, ATTRIB_SIZE);
2176}
2177
2178static inline void smc_request_datacs(struct platform_device *pdev, struct net_device *ndev)
2179{
2180 if (SMC_CAN_USE_DATACS) {
2181 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-data32");
2182 struct smc_local *lp = netdev_priv(ndev);
2183
2184 if (!res)
2185 return;
2186
2187 if(!request_mem_region(res->start, SMC_DATA_EXTENT, CARDNAME)) {
2188 printk(KERN_INFO "%s: failed to request datacs memory region.\n", CARDNAME);
2189 return;
2190 }
2191
2192 lp->datacs = ioremap(res->start, SMC_DATA_EXTENT);
2193 }
2194}
2195
2196static void smc_release_datacs(struct platform_device *pdev, struct net_device *ndev)
2197{
2198 if (SMC_CAN_USE_DATACS) {
2199 struct smc_local *lp = netdev_priv(ndev);
2200 struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-data32");
2201
2202 if (lp->datacs)
2203 iounmap(lp->datacs);
2204
2205 lp->datacs = NULL;
2206
2207 if (res)
2208 release_mem_region(res->start, SMC_DATA_EXTENT);
2209 }
2210}
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223static int __devinit smc_drv_probe(struct platform_device *pdev)
2224{
2225 struct smc91x_platdata *pd = pdev->dev.platform_data;
2226 struct smc_local *lp;
2227 struct net_device *ndev;
2228 struct resource *res, *ires;
2229 unsigned int __iomem *addr;
2230 unsigned long irq_flags = SMC_IRQ_FLAGS;
2231 int ret;
2232
2233 ndev = alloc_etherdev(sizeof(struct smc_local));
2234 if (!ndev) {
2235 printk("%s: could not allocate device.\n", CARDNAME);
2236 ret = -ENOMEM;
2237 goto out;
2238 }
2239 SET_NETDEV_DEV(ndev, &pdev->dev);
2240
2241
2242
2243
2244
2245 lp = netdev_priv(ndev);
2246
2247 if (pd) {
2248 memcpy(&lp->cfg, pd, sizeof(lp->cfg));
2249 lp->io_shift = SMC91X_IO_SHIFT(lp->cfg.flags);
2250 } else {
2251 lp->cfg.flags |= (SMC_CAN_USE_8BIT) ? SMC91X_USE_8BIT : 0;
2252 lp->cfg.flags |= (SMC_CAN_USE_16BIT) ? SMC91X_USE_16BIT : 0;
2253 lp->cfg.flags |= (SMC_CAN_USE_32BIT) ? SMC91X_USE_32BIT : 0;
2254 lp->cfg.flags |= (nowait) ? SMC91X_NOWAIT : 0;
2255 }
2256
2257 if (!lp->cfg.leda && !lp->cfg.ledb) {
2258 lp->cfg.leda = RPC_LSA_DEFAULT;
2259 lp->cfg.ledb = RPC_LSB_DEFAULT;
2260 }
2261
2262 ndev->dma = (unsigned char)-1;
2263
2264 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs");
2265 if (!res)
2266 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2267 if (!res) {
2268 ret = -ENODEV;
2269 goto out_free_netdev;
2270 }
2271
2272
2273 if (!request_mem_region(res->start, SMC_IO_EXTENT, CARDNAME)) {
2274 ret = -EBUSY;
2275 goto out_free_netdev;
2276 }
2277
2278 ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2279 if (!ires) {
2280 ret = -ENODEV;
2281 goto out_release_io;
2282 }
2283
2284 ndev->irq = ires->start;
2285
2286 if (irq_flags == -1 || ires->flags & IRQF_TRIGGER_MASK)
2287 irq_flags = ires->flags & IRQF_TRIGGER_MASK;
2288
2289 ret = smc_request_attrib(pdev, ndev);
2290 if (ret)
2291 goto out_release_io;
2292#if defined(CONFIG_SA1100_ASSABET)
2293 NCR_0 |= NCR_ENET_OSC_EN;
2294#endif
2295 platform_set_drvdata(pdev, ndev);
2296 ret = smc_enable_device(pdev);
2297 if (ret)
2298 goto out_release_attrib;
2299
2300 addr = ioremap(res->start, SMC_IO_EXTENT);
2301 if (!addr) {
2302 ret = -ENOMEM;
2303 goto out_release_attrib;
2304 }
2305
2306#ifdef CONFIG_ARCH_PXA
2307 {
2308 struct smc_local *lp = netdev_priv(ndev);
2309 lp->device = &pdev->dev;
2310 lp->physaddr = res->start;
2311 }
2312#endif
2313
2314 ret = smc_probe(ndev, addr, irq_flags);
2315 if (ret != 0)
2316 goto out_iounmap;
2317
2318 smc_request_datacs(pdev, ndev);
2319
2320 return 0;
2321
2322 out_iounmap:
2323 platform_set_drvdata(pdev, NULL);
2324 iounmap(addr);
2325 out_release_attrib:
2326 smc_release_attrib(pdev, ndev);
2327 out_release_io:
2328 release_mem_region(res->start, SMC_IO_EXTENT);
2329 out_free_netdev:
2330 free_netdev(ndev);
2331 out:
2332 printk("%s: not found (%d).\n", CARDNAME, ret);
2333
2334 return ret;
2335}
2336
2337static int __devexit smc_drv_remove(struct platform_device *pdev)
2338{
2339 struct net_device *ndev = platform_get_drvdata(pdev);
2340 struct smc_local *lp = netdev_priv(ndev);
2341 struct resource *res;
2342
2343 platform_set_drvdata(pdev, NULL);
2344
2345 unregister_netdev(ndev);
2346
2347 free_irq(ndev->irq, ndev);
2348
2349#ifdef CONFIG_ARCH_PXA
2350 if (ndev->dma != (unsigned char)-1)
2351 pxa_free_dma(ndev->dma);
2352#endif
2353 iounmap(lp->base);
2354
2355 smc_release_datacs(pdev,ndev);
2356 smc_release_attrib(pdev,ndev);
2357
2358 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs");
2359 if (!res)
2360 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2361 release_mem_region(res->start, SMC_IO_EXTENT);
2362
2363 free_netdev(ndev);
2364
2365 return 0;
2366}
2367
2368static int smc_drv_suspend(struct platform_device *dev, pm_message_t state)
2369{
2370 struct net_device *ndev = platform_get_drvdata(dev);
2371
2372 if (ndev) {
2373 if (netif_running(ndev)) {
2374 netif_device_detach(ndev);
2375 smc_shutdown(ndev);
2376 smc_phy_powerdown(ndev);
2377 }
2378 }
2379 return 0;
2380}
2381
2382static int smc_drv_resume(struct platform_device *dev)
2383{
2384 struct net_device *ndev = platform_get_drvdata(dev);
2385
2386 if (ndev) {
2387 struct smc_local *lp = netdev_priv(ndev);
2388 smc_enable_device(dev);
2389 if (netif_running(ndev)) {
2390 smc_reset(ndev);
2391 smc_enable(ndev);
2392 if (lp->phy_type != 0)
2393 smc_phy_configure(&lp->phy_configure);
2394 netif_device_attach(ndev);
2395 }
2396 }
2397 return 0;
2398}
2399
2400static struct platform_driver smc_driver = {
2401 .probe = smc_drv_probe,
2402 .remove = __devexit_p(smc_drv_remove),
2403 .suspend = smc_drv_suspend,
2404 .resume = smc_drv_resume,
2405 .driver = {
2406 .name = CARDNAME,
2407 .owner = THIS_MODULE,
2408 },
2409};
2410
2411static int __init smc_init(void)
2412{
2413 return platform_driver_register(&smc_driver);
2414}
2415
2416static void __exit smc_cleanup(void)
2417{
2418 platform_driver_unregister(&smc_driver);
2419}
2420
2421module_init(smc_init);
2422module_exit(smc_cleanup);
2423