1 /*
2 * macsonic.c
3 *
4 * (C) 2005 Finn Thain
5 *
6 * Converted to DMA API, converted to unified driver model, made it work as
7 * a module again, and from the mac68k project, introduced more 32-bit cards
8 * and dhd's support for 16-bit cards.
9 *
10 * (C) 1998 Alan Cox
11 *
12 * Debugging Andreas Ehliar, Michael Schmitz
13 *
14 * Based on code
15 * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
16 *
17 * This driver is based on work from Andreas Busse, but most of
18 * the code is rewritten.
19 *
20 * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
21 *
22 * A driver for the Mac onboard Sonic ethernet chip.
23 *
24 * 98/12/21 MSch: judged from tests on Q800, it's basically working,
25 * but eating up both receive and transmit resources
26 * and duplicating packets. Needs more testing.
27 *
28 * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
29 *
30 * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
31 * on centris.
32 */
33
34 #include <linux/kernel.h>
35 #include <linux/module.h>
36 #include <linux/types.h>
37 #include <linux/fcntl.h>
38 #include <linux/interrupt.h>
39 #include <linux/init.h>
40 #include <linux/ioport.h>
41 #include <linux/in.h>
42 #include <linux/slab.h>
43 #include <linux/string.h>
44 #include <linux/delay.h>
45 #include <linux/nubus.h>
46 #include <linux/errno.h>
47 #include <linux/netdevice.h>
48 #include <linux/etherdevice.h>
49 #include <linux/skbuff.h>
50 #include <linux/platform_device.h>
51 #include <linux/dma-mapping.h>
52 #include <linux/bitrev.h>
53
54 #include <asm/bootinfo.h>
55 #include <asm/system.h>
56 #include <asm/pgtable.h>
57 #include <asm/io.h>
58 #include <asm/hwtest.h>
59 #include <asm/dma.h>
60 #include <asm/macintosh.h>
61 #include <asm/macints.h>
62 #include <asm/mac_via.h>
63
64 static char mac_sonic_string[] = "macsonic";
65 static struct platform_device *mac_sonic_device;
66
67 #include "sonic.h"
68
69 /* These should basically be bus-size and endian independent (since
70 the SONIC is at least smart enough that it uses the same endianness
71 as the host, unlike certain less enlightened Macintosh NICs) */
72 #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
73 + lp->reg_offset))
74 #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
75 + lp->reg_offset))
76
77 /* use 0 for production, 1 for verification, >1 for debug */
78 #ifdef SONIC_DEBUG
79 static unsigned int sonic_debug = SONIC_DEBUG;
80 #else
81 static unsigned int sonic_debug = 1;
82 #endif
83
84 static int sonic_version_printed;
85
86 /* For onboard SONIC */
87 #define ONBOARD_SONIC_REGISTERS 0x50F0A000
88 #define ONBOARD_SONIC_PROM_BASE 0x50f08000
89
90 enum macsonic_type {
91 MACSONIC_DUODOCK,
92 MACSONIC_APPLE,
93 MACSONIC_APPLE16,
94 MACSONIC_DAYNA,
95 MACSONIC_DAYNALINK
96 };
97
98 /* For the built-in SONIC in the Duo Dock */
99 #define DUODOCK_SONIC_REGISTERS 0xe10000
100 #define DUODOCK_SONIC_PROM_BASE 0xe12000
101
102 /* For Apple-style NuBus SONIC */
103 #define APPLE_SONIC_REGISTERS 0
104 #define APPLE_SONIC_PROM_BASE 0x40000
105
106 /* Daynalink LC SONIC */
107 #define DAYNALINK_PROM_BASE 0x400000
108
109 /* For Dayna-style NuBus SONIC (haven't seen one yet) */
110 #define DAYNA_SONIC_REGISTERS 0x180000
111 /* This is what OpenBSD says. However, this is definitely in NuBus
112 ROM space so we should be able to get it by walking the NuBus
113 resource directories */
114 #define DAYNA_SONIC_MAC_ADDR 0xffe004
115
116 #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
117
118 /*
119 * For reversing the PROM address
120 */
121
bit_reverse_addr(unsigned char addr[6])122 static inline void bit_reverse_addr(unsigned char addr[6])
123 {
124 int i;
125
126 for(i = 0; i < 6; i++)
127 addr[i] = bitrev8(addr[i]);
128 }
129
macsonic_interrupt(int irq,void * dev_id)130 static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
131 {
132 irqreturn_t result;
133 unsigned long flags;
134
135 local_irq_save(flags);
136 result = sonic_interrupt(irq, dev_id);
137 local_irq_restore(flags);
138 return result;
139 }
140
macsonic_open(struct net_device * dev)141 static int macsonic_open(struct net_device* dev)
142 {
143 if (request_irq(dev->irq, &sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
144 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
145 return -EAGAIN;
146 }
147 /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
148 * in at priority level 3. However, we sometimes get the level 2 inter-
149 * rupt as well, which must prevent re-entrance of the sonic handler.
150 */
151 if (dev->irq == IRQ_AUTO_3)
152 if (request_irq(IRQ_NUBUS_9, &macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
153 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, IRQ_NUBUS_9);
154 free_irq(dev->irq, dev);
155 return -EAGAIN;
156 }
157 return sonic_open(dev);
158 }
159
macsonic_close(struct net_device * dev)160 static int macsonic_close(struct net_device* dev)
161 {
162 int err;
163 err = sonic_close(dev);
164 free_irq(dev->irq, dev);
165 if (dev->irq == IRQ_AUTO_3)
166 free_irq(IRQ_NUBUS_9, dev);
167 return err;
168 }
169
macsonic_init(struct net_device * dev)170 static int __init macsonic_init(struct net_device *dev)
171 {
172 struct sonic_local* lp = netdev_priv(dev);
173
174 /* Allocate the entire chunk of memory for the descriptors.
175 Note that this cannot cross a 64K boundary. */
176 if ((lp->descriptors = dma_alloc_coherent(lp->device,
177 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
178 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
179 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
180 return -ENOMEM;
181 }
182
183 /* Now set up the pointers to point to the appropriate places */
184 lp->cda = lp->descriptors;
185 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
186 * SONIC_BUS_SCALE(lp->dma_bitmode));
187 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
188 * SONIC_BUS_SCALE(lp->dma_bitmode));
189 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
190 * SONIC_BUS_SCALE(lp->dma_bitmode));
191
192 lp->cda_laddr = lp->descriptors_laddr;
193 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
194 * SONIC_BUS_SCALE(lp->dma_bitmode));
195 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
196 * SONIC_BUS_SCALE(lp->dma_bitmode));
197 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
198 * SONIC_BUS_SCALE(lp->dma_bitmode));
199
200 dev->open = macsonic_open;
201 dev->stop = macsonic_close;
202 dev->hard_start_xmit = sonic_send_packet;
203 dev->get_stats = sonic_get_stats;
204 dev->set_multicast_list = &sonic_multicast_list;
205 dev->tx_timeout = sonic_tx_timeout;
206 dev->watchdog_timeo = TX_TIMEOUT;
207
208 /*
209 * clear tally counter
210 */
211 SONIC_WRITE(SONIC_CRCT, 0xffff);
212 SONIC_WRITE(SONIC_FAET, 0xffff);
213 SONIC_WRITE(SONIC_MPT, 0xffff);
214
215 return 0;
216 }
217
mac_onboard_sonic_ethernet_addr(struct net_device * dev)218 static int __init mac_onboard_sonic_ethernet_addr(struct net_device *dev)
219 {
220 struct sonic_local *lp = netdev_priv(dev);
221 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
222 int i;
223
224 /* On NuBus boards we can sometimes look in the ROM resources.
225 No such luck for comm-slot/onboard. */
226 for(i = 0; i < 6; i++)
227 dev->dev_addr[i] = SONIC_READ_PROM(i);
228
229 /* Most of the time, the address is bit-reversed. The NetBSD
230 source has a rather long and detailed historical account of
231 why this is so. */
232 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
233 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
234 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
235 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
236 bit_reverse_addr(dev->dev_addr);
237 else
238 return 0;
239
240 /* If we still have what seems to be a bogus address, we'll
241 look in the CAM. The top entry should be ours. */
242 /* Danger! This only works if MacOS has already initialized
243 the card... */
244 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
245 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
246 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
247 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
248 {
249 unsigned short val;
250
251 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
252
253 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
254 SONIC_WRITE(SONIC_CEP, 15);
255
256 val = SONIC_READ(SONIC_CAP2);
257 dev->dev_addr[5] = val >> 8;
258 dev->dev_addr[4] = val & 0xff;
259 val = SONIC_READ(SONIC_CAP1);
260 dev->dev_addr[3] = val >> 8;
261 dev->dev_addr[2] = val & 0xff;
262 val = SONIC_READ(SONIC_CAP0);
263 dev->dev_addr[1] = val >> 8;
264 dev->dev_addr[0] = val & 0xff;
265
266 printk(KERN_INFO "HW Address from CAM 15: %pM\n",
267 dev->dev_addr);
268 } else return 0;
269
270 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
271 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
272 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
273 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
274 {
275 /*
276 * Still nonsense ... messed up someplace!
277 */
278 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
279 return -EIO;
280 } else return 0;
281 }
282
mac_onboard_sonic_probe(struct net_device * dev)283 static int __init mac_onboard_sonic_probe(struct net_device *dev)
284 {
285 /* Bwahahaha */
286 static int once_is_more_than_enough;
287 struct sonic_local* lp = netdev_priv(dev);
288 int sr;
289 int commslot = 0;
290
291 if (once_is_more_than_enough)
292 return -ENODEV;
293 once_is_more_than_enough = 1;
294
295 if (!MACH_IS_MAC)
296 return -ENODEV;
297
298 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
299 return -ENODEV;
300
301 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
302
303 /* Bogus probing, on the models which may or may not have
304 Ethernet (BTW, the Ethernet *is* always at the same
305 address, and nothing else lives there, at least if Apple's
306 documentation is to be believed) */
307 if (macintosh_config->ident == MAC_MODEL_Q630 ||
308 macintosh_config->ident == MAC_MODEL_P588 ||
309 macintosh_config->ident == MAC_MODEL_P575 ||
310 macintosh_config->ident == MAC_MODEL_C610) {
311 unsigned long flags;
312 int card_present;
313
314 local_irq_save(flags);
315 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
316 local_irq_restore(flags);
317
318 if (!card_present) {
319 printk("none.\n");
320 return -ENODEV;
321 }
322 commslot = 1;
323 }
324
325 printk("yes\n");
326
327 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
328 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
329 dev->base_addr = ONBOARD_SONIC_REGISTERS;
330 if (via_alt_mapping)
331 dev->irq = IRQ_AUTO_3;
332 else
333 dev->irq = IRQ_NUBUS_9;
334
335 if (!sonic_version_printed) {
336 printk(KERN_INFO "%s", version);
337 sonic_version_printed = 1;
338 }
339 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
340 lp->device->bus_id, dev->base_addr);
341
342 /* The PowerBook's SONIC is 16 bit always. */
343 if (macintosh_config->ident == MAC_MODEL_PB520) {
344 lp->reg_offset = 0;
345 lp->dma_bitmode = SONIC_BITMODE16;
346 sr = SONIC_READ(SONIC_SR);
347 } else if (commslot) {
348 /* Some of the comm-slot cards are 16 bit. But some
349 of them are not. The 32-bit cards use offset 2 and
350 have known revisions, we try reading the revision
351 register at offset 2, if we don't get a known revision
352 we assume 16 bit at offset 0. */
353 lp->reg_offset = 2;
354 lp->dma_bitmode = SONIC_BITMODE16;
355
356 sr = SONIC_READ(SONIC_SR);
357 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
358 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
359 lp->dma_bitmode = SONIC_BITMODE32;
360 else {
361 lp->dma_bitmode = SONIC_BITMODE16;
362 lp->reg_offset = 0;
363 sr = SONIC_READ(SONIC_SR);
364 }
365 } else {
366 /* All onboard cards are at offset 2 with 32 bit DMA. */
367 lp->reg_offset = 2;
368 lp->dma_bitmode = SONIC_BITMODE32;
369 sr = SONIC_READ(SONIC_SR);
370 }
371 printk(KERN_INFO
372 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
373 lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
374
375 #if 0 /* This is sometimes useful to find out how MacOS configured the card. */
376 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
377 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
378 #endif
379
380 /* Software reset, then initialize control registers. */
381 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
382
383 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
384 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
385 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
386
387 /* This *must* be written back to in order to restore the
388 * extended programmable output bits, as it may not have been
389 * initialised since the hardware reset. */
390 SONIC_WRITE(SONIC_DCR2, 0);
391
392 /* Clear *and* disable interrupts to be on the safe side */
393 SONIC_WRITE(SONIC_IMR, 0);
394 SONIC_WRITE(SONIC_ISR, 0x7fff);
395
396 /* Now look for the MAC address. */
397 if (mac_onboard_sonic_ethernet_addr(dev) != 0)
398 return -ENODEV;
399
400 /* Shared init code */
401 return macsonic_init(dev);
402 }
403
mac_nubus_sonic_ethernet_addr(struct net_device * dev,unsigned long prom_addr,int id)404 static int __init mac_nubus_sonic_ethernet_addr(struct net_device *dev,
405 unsigned long prom_addr,
406 int id)
407 {
408 int i;
409 for(i = 0; i < 6; i++)
410 dev->dev_addr[i] = SONIC_READ_PROM(i);
411
412 /* Some of the addresses are bit-reversed */
413 if (id != MACSONIC_DAYNA)
414 bit_reverse_addr(dev->dev_addr);
415
416 return 0;
417 }
418
macsonic_ident(struct nubus_dev * ndev)419 static int __init macsonic_ident(struct nubus_dev *ndev)
420 {
421 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
422 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
423 return MACSONIC_DAYNALINK;
424 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
425 ndev->dr_sw == NUBUS_DRSW_APPLE) {
426 /* There has to be a better way to do this... */
427 if (strstr(ndev->board->name, "DuoDock"))
428 return MACSONIC_DUODOCK;
429 else
430 return MACSONIC_APPLE;
431 }
432
433 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
434 ndev->dr_sw == NUBUS_DRSW_DAYNA)
435 return MACSONIC_DAYNA;
436
437 if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
438 ndev->dr_sw == 0) { /* huh? */
439 return MACSONIC_APPLE16;
440 }
441 return -1;
442 }
443
mac_nubus_sonic_probe(struct net_device * dev)444 static int __init mac_nubus_sonic_probe(struct net_device *dev)
445 {
446 static int slots;
447 struct nubus_dev* ndev = NULL;
448 struct sonic_local* lp = netdev_priv(dev);
449 unsigned long base_addr, prom_addr;
450 u16 sonic_dcr;
451 int id = -1;
452 int reg_offset, dma_bitmode;
453
454 /* Find the first SONIC that hasn't been initialized already */
455 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
456 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
457 {
458 /* Have we seen it already? */
459 if (slots & (1<<ndev->board->slot))
460 continue;
461 slots |= 1<<ndev->board->slot;
462
463 /* Is it one of ours? */
464 if ((id = macsonic_ident(ndev)) != -1)
465 break;
466 }
467
468 if (ndev == NULL)
469 return -ENODEV;
470
471 switch (id) {
472 case MACSONIC_DUODOCK:
473 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
474 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
475 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
476 SONIC_DCR_TFT0;
477 reg_offset = 2;
478 dma_bitmode = SONIC_BITMODE32;
479 break;
480 case MACSONIC_APPLE:
481 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
482 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
483 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
484 reg_offset = 0;
485 dma_bitmode = SONIC_BITMODE32;
486 break;
487 case MACSONIC_APPLE16:
488 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
489 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
490 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
491 SONIC_DCR_PO1 | SONIC_DCR_BMS;
492 reg_offset = 0;
493 dma_bitmode = SONIC_BITMODE16;
494 break;
495 case MACSONIC_DAYNALINK:
496 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
497 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
498 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
499 SONIC_DCR_PO1 | SONIC_DCR_BMS;
500 reg_offset = 0;
501 dma_bitmode = SONIC_BITMODE16;
502 break;
503 case MACSONIC_DAYNA:
504 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
505 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
506 sonic_dcr = SONIC_DCR_BMS |
507 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
508 reg_offset = 0;
509 dma_bitmode = SONIC_BITMODE16;
510 break;
511 default:
512 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
513 return -ENODEV;
514 }
515
516 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
517 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
518 dev->base_addr = base_addr;
519 lp->reg_offset = reg_offset;
520 lp->dma_bitmode = dma_bitmode;
521 dev->irq = SLOT2IRQ(ndev->board->slot);
522
523 if (!sonic_version_printed) {
524 printk(KERN_INFO "%s", version);
525 sonic_version_printed = 1;
526 }
527 printk(KERN_INFO "%s: %s in slot %X\n",
528 lp->device->bus_id, ndev->board->name, ndev->board->slot);
529 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
530 lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
531
532 #if 0 /* This is sometimes useful to find out how MacOS configured the card. */
533 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
534 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
535 #endif
536
537 /* Software reset, then initialize control registers. */
538 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
539 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
540 /* This *must* be written back to in order to restore the
541 * extended programmable output bits, since it may not have been
542 * initialised since the hardware reset. */
543 SONIC_WRITE(SONIC_DCR2, 0);
544
545 /* Clear *and* disable interrupts to be on the safe side */
546 SONIC_WRITE(SONIC_IMR, 0);
547 SONIC_WRITE(SONIC_ISR, 0x7fff);
548
549 /* Now look for the MAC address. */
550 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
551 return -ENODEV;
552
553 /* Shared init code */
554 return macsonic_init(dev);
555 }
556
mac_sonic_probe(struct platform_device * pdev)557 static int __init mac_sonic_probe(struct platform_device *pdev)
558 {
559 struct net_device *dev;
560 struct sonic_local *lp;
561 int err;
562
563 dev = alloc_etherdev(sizeof(struct sonic_local));
564 if (!dev)
565 return -ENOMEM;
566
567 lp = netdev_priv(dev);
568 lp->device = &pdev->dev;
569 SET_NETDEV_DEV(dev, &pdev->dev);
570
571 /* This will catch fatal stuff like -ENOMEM as well as success */
572 err = mac_onboard_sonic_probe(dev);
573 if (err == 0)
574 goto found;
575 if (err != -ENODEV)
576 goto out;
577 err = mac_nubus_sonic_probe(dev);
578 if (err)
579 goto out;
580 found:
581 err = register_netdev(dev);
582 if (err)
583 goto out;
584
585 printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq);
586
587 return 0;
588
589 out:
590 free_netdev(dev);
591
592 return err;
593 }
594
595 MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
596 module_param(sonic_debug, int, 0);
597 MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
598
599 #include "sonic.c"
600
mac_sonic_device_remove(struct platform_device * pdev)601 static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
602 {
603 struct net_device *dev = platform_get_drvdata(pdev);
604 struct sonic_local* lp = netdev_priv(dev);
605
606 unregister_netdev(dev);
607 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
608 lp->descriptors, lp->descriptors_laddr);
609 free_netdev(dev);
610
611 return 0;
612 }
613
614 static struct platform_driver mac_sonic_driver = {
615 .probe = mac_sonic_probe,
616 .remove = __devexit_p(mac_sonic_device_remove),
617 .driver = {
618 .name = mac_sonic_string,
619 },
620 };
621
mac_sonic_init_module(void)622 static int __init mac_sonic_init_module(void)
623 {
624 int err;
625
626 if ((err = platform_driver_register(&mac_sonic_driver))) {
627 printk(KERN_ERR "Driver registration failed\n");
628 return err;
629 }
630
631 mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
632 if (!mac_sonic_device)
633 goto out_unregister;
634
635 if (platform_device_add(mac_sonic_device)) {
636 platform_device_put(mac_sonic_device);
637 mac_sonic_device = NULL;
638 }
639
640 return 0;
641
642 out_unregister:
643 platform_driver_unregister(&mac_sonic_driver);
644
645 return -ENOMEM;
646 }
647
mac_sonic_cleanup_module(void)648 static void __exit mac_sonic_cleanup_module(void)
649 {
650 platform_driver_unregister(&mac_sonic_driver);
651
652 if (mac_sonic_device) {
653 platform_device_unregister(mac_sonic_device);
654 mac_sonic_device = NULL;
655 }
656 }
657
658 module_init(mac_sonic_init_module);
659 module_exit(mac_sonic_cleanup_module);
660