?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / ethernet / amd / a2065.c
blob2f808dbc8b0ed9e6035378aef6abac1fdf91646e
1 /*
2 * Amiga Linux/68k A2065 Ethernet Driver
3 *
4 * (C) Copyright 1995-2003 by Geert Uytterhoeven <geert@linux-m68k.org>
5 *
6 * Fixes and tips by:
7 * - Janos Farkas (CHEXUM@sparta.banki.hu)
8 * - Jes Degn Soerensen (jds@kom.auc.dk)
9 * - Matt Domsch (Matt_Domsch@dell.com)
10 *
11 * ----------------------------------------------------------------------------
12 *
13 * This program is based on
14 *
15 * ariadne.?: Amiga Linux/68k Ariadne Ethernet Driver
16 * (C) Copyright 1995 by Geert Uytterhoeven,
17 * Peter De Schrijver
18 *
19 * lance.c: An AMD LANCE ethernet driver for linux.
20 * Written 1993-94 by Donald Becker.
21 *
22 * Am79C960: PCnet(tm)-ISA Single-Chip Ethernet Controller
23 * Advanced Micro Devices
24 * Publication #16907, Rev. B, Amendment/0, May 1994
25 *
26 * ----------------------------------------------------------------------------
27 *
28 * This file is subject to the terms and conditions of the GNU General Public
29 * License. See the file COPYING in the main directory of the Linux
30 * distribution for more details.
31 *
32 * ----------------------------------------------------------------------------
33 *
34 * The A2065 is a Zorro-II board made by Commodore/Ameristar. It contains:
35 *
36 * - an Am7990 Local Area Network Controller for Ethernet (LANCE) with
37 * both 10BASE-2 (thin coax) and AUI (DB-15) connectors
38 */
39
40 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
41
42 /*#define DEBUG*/
43 /*#define TEST_HITS*/
44
45 #include <linux/errno.h>
46 #include <linux/netdevice.h>
47 #include <linux/etherdevice.h>
48 #include <linux/module.h>
49 #include <linux/stddef.h>
50 #include <linux/kernel.h>
51 #include <linux/interrupt.h>
52 #include <linux/ioport.h>
53 #include <linux/skbuff.h>
54 #include <linux/string.h>
55 #include <linux/init.h>
56 #include <linux/crc32.h>
57 #include <linux/zorro.h>
58 #include <linux/bitops.h>
59
60 #include <asm/byteorder.h>
61 #include <asm/irq.h>
62 #include <asm/amigaints.h>
63 #include <asm/amigahw.h>
64
65 #include "a2065.h"
66
67 /* Transmit/Receive Ring Definitions */
68
69 #define LANCE_LOG_TX_BUFFERS (2)
70 #define LANCE_LOG_RX_BUFFERS (4)
71
72 #define TX_RING_SIZE (1 << LANCE_LOG_TX_BUFFERS)
73 #define RX_RING_SIZE (1 << LANCE_LOG_RX_BUFFERS)
74
75 #define TX_RING_MOD_MASK (TX_RING_SIZE - 1)
76 #define RX_RING_MOD_MASK (RX_RING_SIZE - 1)
77
78 #define PKT_BUF_SIZE (1544)
79 #define RX_BUFF_SIZE PKT_BUF_SIZE
80 #define TX_BUFF_SIZE PKT_BUF_SIZE
81
82 /* Layout of the Lance's RAM Buffer */
83
84 struct lance_init_block {
85 unsigned short mode; /* Pre-set mode (reg. 15) */
86 unsigned char phys_addr[6]; /* Physical ethernet address */
87 unsigned filter[2]; /* Multicast filter. */
88
89 /* Receive and transmit ring base, along with extra bits. */
90 unsigned short rx_ptr; /* receive descriptor addr */
91 unsigned short rx_len; /* receive len and high addr */
92 unsigned short tx_ptr; /* transmit descriptor addr */
93 unsigned short tx_len; /* transmit len and high addr */
94
95 /* The Tx and Rx ring entries must aligned on 8-byte boundaries. */
96 struct lance_rx_desc brx_ring[RX_RING_SIZE];
97 struct lance_tx_desc btx_ring[TX_RING_SIZE];
98
99 char rx_buf[RX_RING_SIZE][RX_BUFF_SIZE];
100 char tx_buf[TX_RING_SIZE][TX_BUFF_SIZE];
101 };
102
103 /* Private Device Data */
104
105 struct lance_private {
106 char *name;
107 volatile struct lance_regs *ll;
108 volatile struct lance_init_block *init_block; /* Hosts view */
109 volatile struct lance_init_block *lance_init_block; /* Lance view */
110
111 int rx_new, tx_new;
112 int rx_old, tx_old;
113
114 int lance_log_rx_bufs, lance_log_tx_bufs;
115 int rx_ring_mod_mask, tx_ring_mod_mask;
116
117 int tpe; /* cable-selection is TPE */
118 int auto_select; /* cable-selection by carrier */
119 unsigned short busmaster_regval;
120
121 struct timer_list multicast_timer;
122 struct net_device *dev;
123 };
124
125 #define LANCE_ADDR(x) ((int)(x) & ~0xff000000)
126
127 /* Load the CSR registers */
128 static void load_csrs(struct lance_private *lp)
129 {
130 volatile struct lance_regs *ll = lp->ll;
131 volatile struct lance_init_block *aib = lp->lance_init_block;
132 int leptr = LANCE_ADDR(aib);
133
134 ll->rap = LE_CSR1;
135 ll->rdp = (leptr & 0xFFFF);
136 ll->rap = LE_CSR2;
137 ll->rdp = leptr >> 16;
138 ll->rap = LE_CSR3;
139 ll->rdp = lp->busmaster_regval;
140
141 /* Point back to csr0 */
142 ll->rap = LE_CSR0;
143 }
144
145 /* Setup the Lance Rx and Tx rings */
146 static void lance_init_ring(struct net_device *dev)
147 {
148 struct lance_private *lp = netdev_priv(dev);
149 volatile struct lance_init_block *ib = lp->init_block;
150 volatile struct lance_init_block *aib = lp->lance_init_block;
151 /* for LANCE_ADDR computations */
152 int leptr;
153 int i;
154
155 /* Lock out other processes while setting up hardware */
156 netif_stop_queue(dev);
157 lp->rx_new = lp->tx_new = 0;
158 lp->rx_old = lp->tx_old = 0;
159
160 ib->mode = 0;
161
162 /* Copy the ethernet address to the lance init block
163 * Note that on the sparc you need to swap the ethernet address.
164 */
165 ib->phys_addr[0] = dev->dev_addr[1];
166 ib->phys_addr[1] = dev->dev_addr[0];
167 ib->phys_addr[2] = dev->dev_addr[3];
168 ib->phys_addr[3] = dev->dev_addr[2];
169 ib->phys_addr[4] = dev->dev_addr[5];
170 ib->phys_addr[5] = dev->dev_addr[4];
171
172 /* Setup the Tx ring entries */
173 netdev_dbg(dev, "TX rings:\n");
174 for (i = 0; i <= 1 << lp->lance_log_tx_bufs; i++) {
175 leptr = LANCE_ADDR(&aib->tx_buf[i][0]);
176 ib->btx_ring[i].tmd0 = leptr;
177 ib->btx_ring[i].tmd1_hadr = leptr >> 16;
178 ib->btx_ring[i].tmd1_bits = 0;
179 ib->btx_ring[i].length = 0xf000; /* The ones required by tmd2 */
180 ib->btx_ring[i].misc = 0;
181 if (i < 3)
182 netdev_dbg(dev, "%d: 0x%08x\n", i, leptr);
183 }
184
185 /* Setup the Rx ring entries */
186 netdev_dbg(dev, "RX rings:\n");
187 for (i = 0; i < 1 << lp->lance_log_rx_bufs; i++) {
188 leptr = LANCE_ADDR(&aib->rx_buf[i][0]);
189
190 ib->brx_ring[i].rmd0 = leptr;
191 ib->brx_ring[i].rmd1_hadr = leptr >> 16;
192 ib->brx_ring[i].rmd1_bits = LE_R1_OWN;
193 ib->brx_ring[i].length = -RX_BUFF_SIZE | 0xf000;
194 ib->brx_ring[i].mblength = 0;
195 if (i < 3)
196 netdev_dbg(dev, "%d: 0x%08x\n", i, leptr);
197 }
198
199 /* Setup the initialization block */
200
201 /* Setup rx descriptor pointer */
202 leptr = LANCE_ADDR(&aib->brx_ring);
203 ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);
204 ib->rx_ptr = leptr;
205 netdev_dbg(dev, "RX ptr: %08x\n", leptr);
206
207 /* Setup tx descriptor pointer */
208 leptr = LANCE_ADDR(&aib->btx_ring);
209 ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);
210 ib->tx_ptr = leptr;
211 netdev_dbg(dev, "TX ptr: %08x\n", leptr);
212
213 /* Clear the multicast filter */
214 ib->filter[0] = 0;
215 ib->filter[1] = 0;
216 }
217
218 static int init_restart_lance(struct lance_private *lp)
219 {
220 volatile struct lance_regs *ll = lp->ll;
221 int i;
222
223 ll->rap = LE_CSR0;
224 ll->rdp = LE_C0_INIT;
225
226 /* Wait for the lance to complete initialization */
227 for (i = 0; (i < 100) && !(ll->rdp & (LE_C0_ERR | LE_C0_IDON)); i++)
228 barrier();
229 if ((i == 100) || (ll->rdp & LE_C0_ERR)) {
230 pr_err("unopened after %d ticks, csr0=%04x\n", i, ll->rdp);
231 return -EIO;
232 }
233
234 /* Clear IDON by writing a "1", enable interrupts and start lance */
235 ll->rdp = LE_C0_IDON;
236 ll->rdp = LE_C0_INEA | LE_C0_STRT;
237
238 return 0;
239 }
240
241 static int lance_rx(struct net_device *dev)
242 {
243 struct lance_private *lp = netdev_priv(dev);
244 volatile struct lance_init_block *ib = lp->init_block;
245 volatile struct lance_regs *ll = lp->ll;
246 volatile struct lance_rx_desc *rd;
247 unsigned char bits;
248
249 #ifdef TEST_HITS
250 int i;
251 char buf[RX_RING_SIZE + 1];
252
253 for (i = 0; i < RX_RING_SIZE; i++) {
254 char r1_own = ib->brx_ring[i].rmd1_bits & LE_R1_OWN;
255 if (i == lp->rx_new)
256 buf[i] = r1_own ? '_' : 'X';
257 else
258 buf[i] = r1_own ? '.' : '1';
259 }
260 buf[RX_RING_SIZE] = 0;
261
262 pr_debug("RxRing TestHits: [%s]\n", buf);
263 #endif
264
265 ll->rdp = LE_C0_RINT | LE_C0_INEA;
266 for (rd = &ib->brx_ring[lp->rx_new];
267 !((bits = rd->rmd1_bits) & LE_R1_OWN);
268 rd = &ib->brx_ring[lp->rx_new]) {
269
270 /* We got an incomplete frame? */
271 if ((bits & LE_R1_POK) != LE_R1_POK) {
272 dev->stats.rx_over_errors++;
273 dev->stats.rx_errors++;
274 continue;
275 } else if (bits & LE_R1_ERR) {
276 /* Count only the end frame as a rx error,
277 * not the beginning
278 */
279 if (bits & LE_R1_BUF)
280 dev->stats.rx_fifo_errors++;
281 if (bits & LE_R1_CRC)
282 dev->stats.rx_crc_errors++;
283 if (bits & LE_R1_OFL)
284 dev->stats.rx_over_errors++;
285 if (bits & LE_R1_FRA)
286 dev->stats.rx_frame_errors++;
287 if (bits & LE_R1_EOP)
288 dev->stats.rx_errors++;
289 } else {
290 int len = (rd->mblength & 0xfff) - 4;
291 struct sk_buff *skb = netdev_alloc_skb(dev, len + 2);
292
293 if (!skb) {
294 dev->stats.rx_dropped++;
295 rd->mblength = 0;
296 rd->rmd1_bits = LE_R1_OWN;
297 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
298 return 0;
299 }
300
301 skb_reserve(skb, 2); /* 16 byte align */
302 skb_put(skb, len); /* make room */
303 skb_copy_to_linear_data(skb,
304 (unsigned char *)&ib->rx_buf[lp->rx_new][0],
305 len);
306 skb->protocol = eth_type_trans(skb, dev);
307 netif_rx(skb);
308 dev->stats.rx_packets++;
309 dev->stats.rx_bytes += len;
310 }
311
312 /* Return the packet to the pool */
313 rd->mblength = 0;
314 rd->rmd1_bits = LE_R1_OWN;
315 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
316 }
317 return 0;
318 }
319
320 static int lance_tx(struct net_device *dev)
321 {
322 struct lance_private *lp = netdev_priv(dev);
323 volatile struct lance_init_block *ib = lp->init_block;
324 volatile struct lance_regs *ll = lp->ll;
325 volatile struct lance_tx_desc *td;
326 int i, j;
327 int status;
328
329 /* csr0 is 2f3 */
330 ll->rdp = LE_C0_TINT | LE_C0_INEA;
331 /* csr0 is 73 */
332
333 j = lp->tx_old;
334 for (i = j; i != lp->tx_new; i = j) {
335 td = &ib->btx_ring[i];
336
337 /* If we hit a packet not owned by us, stop */
338 if (td->tmd1_bits & LE_T1_OWN)
339 break;
340
341 if (td->tmd1_bits & LE_T1_ERR) {
342 status = td->misc;
343
344 dev->stats.tx_errors++;
345 if (status & LE_T3_RTY)
346 dev->stats.tx_aborted_errors++;
347 if (status & LE_T3_LCOL)
348 dev->stats.tx_window_errors++;
349
350 if (status & LE_T3_CLOS) {
351 dev->stats.tx_carrier_errors++;
352 if (lp->auto_select) {
353 lp->tpe = 1 - lp->tpe;
354 netdev_err(dev, "Carrier Lost, trying %s\n",
355 lp->tpe ? "TPE" : "AUI");
356 /* Stop the lance */
357 ll->rap = LE_CSR0;
358 ll->rdp = LE_C0_STOP;
359 lance_init_ring(dev);
360 load_csrs(lp);
361 init_restart_lance(lp);
362 return 0;
363 }
364 }
365
366 /* buffer errors and underflows turn off
367 * the transmitter, so restart the adapter
368 */
369 if (status & (LE_T3_BUF | LE_T3_UFL)) {
370 dev->stats.tx_fifo_errors++;
371
372 netdev_err(dev, "Tx: ERR_BUF|ERR_UFL, restarting\n");
373 /* Stop the lance */
374 ll->rap = LE_CSR0;
375 ll->rdp = LE_C0_STOP;
376 lance_init_ring(dev);
377 load_csrs(lp);
378 init_restart_lance(lp);
379 return 0;
380 }
381 } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) {
382 /* So we don't count the packet more than once. */
383 td->tmd1_bits &= ~(LE_T1_POK);
384
385 /* One collision before packet was sent. */
386 if (td->tmd1_bits & LE_T1_EONE)
387 dev->stats.collisions++;
388
389 /* More than one collision, be optimistic. */
390 if (td->tmd1_bits & LE_T1_EMORE)
391 dev->stats.collisions += 2;
392
393 dev->stats.tx_packets++;
394 }
395
396 j = (j + 1) & lp->tx_ring_mod_mask;
397 }
398 lp->tx_old = j;
399 ll->rdp = LE_C0_TINT | LE_C0_INEA;
400 return 0;
401 }
402
403 static int lance_tx_buffs_avail(struct lance_private *lp)
404 {
405 if (lp->tx_old <= lp->tx_new)
406 return lp->tx_old + lp->tx_ring_mod_mask - lp->tx_new;
407 return lp->tx_old - lp->tx_new - 1;
408 }
409
410 static irqreturn_t lance_interrupt(int irq, void *dev_id)
411 {
412 struct net_device *dev = dev_id;
413 struct lance_private *lp = netdev_priv(dev);
414 volatile struct lance_regs *ll = lp->ll;
415 int csr0;
416
417 ll->rap = LE_CSR0; /* LANCE Controller Status */
418 csr0 = ll->rdp;
419
420 if (!(csr0 & LE_C0_INTR)) /* Check if any interrupt has */
421 return IRQ_NONE; /* been generated by the Lance. */
422
423 /* Acknowledge all the interrupt sources ASAP */
424 ll->rdp = csr0 & ~(LE_C0_INEA | LE_C0_TDMD | LE_C0_STOP | LE_C0_STRT |
425 LE_C0_INIT);
426
427 if (csr0 & LE_C0_ERR) {
428 /* Clear the error condition */
429 ll->rdp = LE_C0_BABL | LE_C0_ERR | LE_C0_MISS | LE_C0_INEA;
430 }
431
432 if (csr0 & LE_C0_RINT)
433 lance_rx(dev);
434
435 if (csr0 & LE_C0_TINT)
436 lance_tx(dev);
437
438 /* Log misc errors. */
439 if (csr0 & LE_C0_BABL)
440 dev->stats.tx_errors++; /* Tx babble. */
441 if (csr0 & LE_C0_MISS)
442 dev->stats.rx_errors++; /* Missed a Rx frame. */
443 if (csr0 & LE_C0_MERR) {
444 netdev_err(dev, "Bus master arbitration failure, status %04x\n",
445 csr0);
446 /* Restart the chip. */
447 ll->rdp = LE_C0_STRT;
448 }
449
450 if (netif_queue_stopped(dev) && lance_tx_buffs_avail(lp) > 0)
451 netif_wake_queue(dev);
452
453 ll->rap = LE_CSR0;
454 ll->rdp = (LE_C0_BABL | LE_C0_CERR | LE_C0_MISS | LE_C0_MERR |
455 LE_C0_IDON | LE_C0_INEA);
456 return IRQ_HANDLED;
457 }
458
459 static int lance_open(struct net_device *dev)
460 {
461 struct lance_private *lp = netdev_priv(dev);
462 volatile struct lance_regs *ll = lp->ll;
463 int ret;
464
465 /* Stop the Lance */
466 ll->rap = LE_CSR0;
467 ll->rdp = LE_C0_STOP;
468
469 /* Install the Interrupt handler */
470 ret = request_irq(IRQ_AMIGA_PORTS, lance_interrupt, IRQF_SHARED,
471 dev->name, dev);
472 if (ret)
473 return ret;
474
475 load_csrs(lp);
476 lance_init_ring(dev);
477
478 netif_start_queue(dev);
479
480 return init_restart_lance(lp);
481 }
482
483 static int lance_close(struct net_device *dev)
484 {
485 struct lance_private *lp = netdev_priv(dev);
486 volatile struct lance_regs *ll = lp->ll;
487
488 netif_stop_queue(dev);
489 del_timer_sync(&lp->multicast_timer);
490
491 /* Stop the card */
492 ll->rap = LE_CSR0;
493 ll->rdp = LE_C0_STOP;
494
495 free_irq(IRQ_AMIGA_PORTS, dev);
496 return 0;
497 }
498
499 static inline int lance_reset(struct net_device *dev)
500 {
501 struct lance_private *lp = netdev_priv(dev);
502 volatile struct lance_regs *ll = lp->ll;
503 int status;
504
505 /* Stop the lance */
506 ll->rap = LE_CSR0;
507 ll->rdp = LE_C0_STOP;
508
509 load_csrs(lp);
510
511 lance_init_ring(dev);
512 netif_trans_update(dev); /* prevent tx timeout */
513 netif_start_queue(dev);
514
515 status = init_restart_lance(lp);
516 netdev_dbg(dev, "Lance restart=%d\n", status);
517
518 return status;
519 }
520
521 static void lance_tx_timeout(struct net_device *dev, unsigned int txqueue)
522 {
523 struct lance_private *lp = netdev_priv(dev);
524 volatile struct lance_regs *ll = lp->ll;
525
526 netdev_err(dev, "transmit timed out, status %04x, reset\n", ll->rdp);
527 lance_reset(dev);
528 netif_wake_queue(dev);
529 }
530
531 static netdev_tx_t lance_start_xmit(struct sk_buff *skb,
532 struct net_device *dev)
533 {
534 struct lance_private *lp = netdev_priv(dev);
535 volatile struct lance_regs *ll = lp->ll;
536 volatile struct lance_init_block *ib = lp->init_block;
537 int entry, skblen;
538 int status = NETDEV_TX_OK;
539 unsigned long flags;
540
541 if (skb_padto(skb, ETH_ZLEN))
542 return NETDEV_TX_OK;
543 skblen = max_t(unsigned, skb->len, ETH_ZLEN);
544
545 local_irq_save(flags);
546
547 if (!lance_tx_buffs_avail(lp))
548 goto out_free;
549
550 /* dump the packet */
551 print_hex_dump_debug("skb->data: ", DUMP_PREFIX_NONE, 16, 1, skb->data,
552 64, true);
553
554 entry = lp->tx_new & lp->tx_ring_mod_mask;
555 ib->btx_ring[entry].length = (-skblen) | 0xf000;
556 ib->btx_ring[entry].misc = 0;
557
558 skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen);
559
560 /* Now, give the packet to the lance */
561 ib->btx_ring[entry].tmd1_bits = (LE_T1_POK | LE_T1_OWN);
562 lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask;
563 dev->stats.tx_bytes += skblen;
564
565 if (lance_tx_buffs_avail(lp) <= 0)
566 netif_stop_queue(dev);
567
568 /* Kick the lance: transmit now */
569 ll->rdp = LE_C0_INEA | LE_C0_TDMD;
570 out_free:
571 dev_kfree_skb(skb);
572
573 local_irq_restore(flags);
574
575 return status;
576 }
577
578 /* taken from the depca driver */
579 static void lance_load_multicast(struct net_device *dev)
580 {
581 struct lance_private *lp = netdev_priv(dev);
582 volatile struct lance_init_block *ib = lp->init_block;
583 volatile u16 *mcast_table = (u16 *)&ib->filter;
584 struct netdev_hw_addr *ha;
585 u32 crc;
586
587 /* set all multicast bits */
588 if (dev->flags & IFF_ALLMULTI) {
589 ib->filter[0] = 0xffffffff;
590 ib->filter[1] = 0xffffffff;
591 return;
592 }
593 /* clear the multicast filter */
594 ib->filter[0] = 0;
595 ib->filter[1] = 0;
596
597 /* Add addresses */
598 netdev_for_each_mc_addr(ha, dev) {
599 crc = ether_crc_le(6, ha->addr);
600 crc = crc >> 26;
601 mcast_table[crc >> 4] |= 1 << (crc & 0xf);
602 }
603 }
604
605 static void lance_set_multicast(struct net_device *dev)
606 {
607 struct lance_private *lp = netdev_priv(dev);
608 volatile struct lance_init_block *ib = lp->init_block;
609 volatile struct lance_regs *ll = lp->ll;
610
611 if (!netif_running(dev))
612 return;
613
614 if (lp->tx_old != lp->tx_new) {
615 mod_timer(&lp->multicast_timer, jiffies + 4);
616 netif_wake_queue(dev);
617 return;
618 }
619
620 netif_stop_queue(dev);
621
622 ll->rap = LE_CSR0;
623 ll->rdp = LE_C0_STOP;
624 lance_init_ring(dev);
625
626 if (dev->flags & IFF_PROMISC) {
627 ib->mode |= LE_MO_PROM;
628 } else {
629 ib->mode &= ~LE_MO_PROM;
630 lance_load_multicast(dev);
631 }
632 load_csrs(lp);
633 init_restart_lance(lp);
634 netif_wake_queue(dev);
635 }
636
637 static void lance_set_multicast_retry(struct timer_list *t)
638 {
639 struct lance_private *lp = from_timer(lp, t, multicast_timer);
640
641 lance_set_multicast(lp->dev);
642 }
643
644 static int a2065_init_one(struct zorro_dev *z,
645 const struct zorro_device_id *ent);
646 static void a2065_remove_one(struct zorro_dev *z);
647
648
649 static const struct zorro_device_id a2065_zorro_tbl[] = {
650 { ZORRO_PROD_CBM_A2065_1 },
651 { ZORRO_PROD_CBM_A2065_2 },
652 { ZORRO_PROD_AMERISTAR_A2065 },
653 { 0 }
654 };
655 MODULE_DEVICE_TABLE(zorro, a2065_zorro_tbl);
656
657 static struct zorro_driver a2065_driver = {
658 .name = "a2065",
659 .id_table = a2065_zorro_tbl,
660 .probe = a2065_init_one,
661 .remove = a2065_remove_one,
662 };
663
664 static const struct net_device_ops lance_netdev_ops = {
665 .ndo_open = lance_open,
666 .ndo_stop = lance_close,
667 .ndo_start_xmit = lance_start_xmit,
668 .ndo_tx_timeout = lance_tx_timeout,
669 .ndo_set_rx_mode = lance_set_multicast,
670 .ndo_validate_addr = eth_validate_addr,
671 .ndo_set_mac_address = eth_mac_addr,
672 };
673
674 static int a2065_init_one(struct zorro_dev *z,
675 const struct zorro_device_id *ent)
676 {
677 struct net_device *dev;
678 struct lance_private *priv;
679 unsigned long board = z->resource.start;
680 unsigned long base_addr = board + A2065_LANCE;
681 unsigned long mem_start = board + A2065_RAM;
682 struct resource *r1, *r2;
683 u32 serial;
684 int err;
685
686 r1 = request_mem_region(base_addr, sizeof(struct lance_regs),
687 "Am7990");
688 if (!r1)
689 return -EBUSY;
690 r2 = request_mem_region(mem_start, A2065_RAM_SIZE, "RAM");
691 if (!r2) {
692 release_mem_region(base_addr, sizeof(struct lance_regs));
693 return -EBUSY;
694 }
695
696 dev = alloc_etherdev(sizeof(struct lance_private));
697 if (dev == NULL) {
698 release_mem_region(base_addr, sizeof(struct lance_regs));
699 release_mem_region(mem_start, A2065_RAM_SIZE);
700 return -ENOMEM;
701 }
702
703 priv = netdev_priv(dev);
704
705 r1->name = dev->name;
706 r2->name = dev->name;
707
708 serial = be32_to_cpu(z->rom.er_SerialNumber);
709 dev->dev_addr[0] = 0x00;
710 if (z->id != ZORRO_PROD_AMERISTAR_A2065) { /* Commodore */
711 dev->dev_addr[1] = 0x80;
712 dev->dev_addr[2] = 0x10;
713 } else { /* Ameristar */
714 dev->dev_addr[1] = 0x00;
715 dev->dev_addr[2] = 0x9f;
716 }
717 dev->dev_addr[3] = (serial >> 16) & 0xff;
718 dev->dev_addr[4] = (serial >> 8) & 0xff;
719 dev->dev_addr[5] = serial & 0xff;
720 dev->base_addr = (unsigned long)ZTWO_VADDR(base_addr);
721 dev->mem_start = (unsigned long)ZTWO_VADDR(mem_start);
722 dev->mem_end = dev->mem_start + A2065_RAM_SIZE;
723
724 priv->ll = (volatile struct lance_regs *)dev->base_addr;
725 priv->init_block = (struct lance_init_block *)dev->mem_start;
726 priv->lance_init_block = (struct lance_init_block *)A2065_RAM;
727 priv->auto_select = 0;
728 priv->busmaster_regval = LE_C3_BSWP;
729
730 priv->lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;
731 priv->lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;
732 priv->rx_ring_mod_mask = RX_RING_MOD_MASK;
733 priv->tx_ring_mod_mask = TX_RING_MOD_MASK;
734 priv->dev = dev;
735
736 dev->netdev_ops = &lance_netdev_ops;
737 dev->watchdog_timeo = 5*HZ;
738 dev->dma = 0;
739
740 timer_setup(&priv->multicast_timer, lance_set_multicast_retry, 0);
741
742 err = register_netdev(dev);
743 if (err) {
744 release_mem_region(base_addr, sizeof(struct lance_regs));
745 release_mem_region(mem_start, A2065_RAM_SIZE);
746 free_netdev(dev);
747 return err;
748 }
749 zorro_set_drvdata(z, dev);
750
751 netdev_info(dev, "A2065 at 0x%08lx, Ethernet Address %pM\n",
752 board, dev->dev_addr);
753
754 return 0;
755 }
756
757
758 static void a2065_remove_one(struct zorro_dev *z)
759 {
760 struct net_device *dev = zorro_get_drvdata(z);
761
762 unregister_netdev(dev);
763 release_mem_region(ZTWO_PADDR(dev->base_addr),
764 sizeof(struct lance_regs));
765 release_mem_region(ZTWO_PADDR(dev->mem_start), A2065_RAM_SIZE);
766 free_netdev(dev);
767 }
768
769 static int __init a2065_init_module(void)
770 {
771 return zorro_register_driver(&a2065_driver);
772 }
773
774 static void __exit a2065_cleanup_module(void)
775 {
776 zorro_unregister_driver(&a2065_driver);
777 }
778
779 module_init(a2065_init_module);
780 module_exit(a2065_cleanup_module);
781
782 MODULE_LICENSE("GPL");
Linux with added FPC-III support