1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * macsonic.c |
4 | * |
5 | * (C) 2005 Finn Thain |
6 | * |
7 | * Converted to DMA API, converted to unified driver model, made it work as |
8 | * a module again, and from the mac68k project, introduced more 32-bit cards |
9 | * and dhd's support for 16-bit cards. |
10 | * |
11 | * (C) 1998 Alan Cox |
12 | * |
13 | * Debugging Andreas Ehliar, Michael Schmitz |
14 | * |
15 | * Based on code |
16 | * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de) |
17 | * |
18 | * This driver is based on work from Andreas Busse, but most of |
19 | * the code is rewritten. |
20 | * |
21 | * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de) |
22 | * |
23 | * A driver for the Mac onboard Sonic ethernet chip. |
24 | * |
25 | * 98/12/21 MSch: judged from tests on Q800, it's basically working, |
26 | * but eating up both receive and transmit resources |
27 | * and duplicating packets. Needs more testing. |
28 | * |
29 | * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed. |
30 | * |
31 | * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems |
32 | * on centris. |
33 | */ |
34 | |
35 | #include <linux/kernel.h> |
36 | #include <linux/module.h> |
37 | #include <linux/types.h> |
38 | #include <linux/fcntl.h> |
39 | #include <linux/gfp.h> |
40 | #include <linux/interrupt.h> |
41 | #include <linux/ioport.h> |
42 | #include <linux/in.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 | #include <linux/slab.h> |
54 | #include <linux/pgtable.h> |
55 | |
56 | #include <asm/io.h> |
57 | #include <asm/hwtest.h> |
58 | #include <asm/dma.h> |
59 | #include <asm/macintosh.h> |
60 | #include <asm/macints.h> |
61 | #include <asm/mac_via.h> |
62 | |
63 | #include "sonic.h" |
64 | |
65 | /* These should basically be bus-size and endian independent (since |
66 | the SONIC is at least smart enough that it uses the same endianness |
67 | as the host, unlike certain less enlightened Macintosh NICs) */ |
68 | #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \ |
69 | + lp->reg_offset)) |
70 | #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \ |
71 | + lp->reg_offset)) |
72 | |
73 | /* For onboard SONIC */ |
74 | #define ONBOARD_SONIC_REGISTERS 0x50F0A000 |
75 | #define ONBOARD_SONIC_PROM_BASE 0x50f08000 |
76 | |
77 | enum macsonic_type { |
78 | MACSONIC_DUODOCK, |
79 | MACSONIC_APPLE, |
80 | MACSONIC_APPLE16, |
81 | MACSONIC_DAYNA, |
82 | MACSONIC_DAYNALINK |
83 | }; |
84 | |
85 | /* For the built-in SONIC in the Duo Dock */ |
86 | #define DUODOCK_SONIC_REGISTERS 0xe10000 |
87 | #define DUODOCK_SONIC_PROM_BASE 0xe12000 |
88 | |
89 | /* For Apple-style NuBus SONIC */ |
90 | #define APPLE_SONIC_REGISTERS 0 |
91 | #define APPLE_SONIC_PROM_BASE 0x40000 |
92 | |
93 | /* Daynalink LC SONIC */ |
94 | #define DAYNALINK_PROM_BASE 0x400000 |
95 | |
96 | /* For Dayna-style NuBus SONIC (haven't seen one yet) */ |
97 | #define DAYNA_SONIC_REGISTERS 0x180000 |
98 | /* This is what OpenBSD says. However, this is definitely in NuBus |
99 | ROM space so we should be able to get it by walking the NuBus |
100 | resource directories */ |
101 | #define DAYNA_SONIC_MAC_ADDR 0xffe004 |
102 | |
103 | #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr) |
104 | |
105 | /* |
106 | * For reversing the PROM address |
107 | */ |
108 | |
109 | static inline void bit_reverse_addr(unsigned char addr[6]) |
110 | { |
111 | int i; |
112 | |
113 | for(i = 0; i < 6; i++) |
114 | addr[i] = bitrev8(addr[i]); |
115 | } |
116 | |
117 | static int macsonic_open(struct net_device* dev) |
118 | { |
119 | int retval; |
120 | |
121 | retval = request_irq(irq: dev->irq, handler: sonic_interrupt, flags: 0, name: "sonic" , dev); |
122 | if (retval) { |
123 | printk(KERN_ERR "%s: unable to get IRQ %d.\n" , |
124 | dev->name, dev->irq); |
125 | goto err; |
126 | } |
127 | /* Under the A/UX interrupt scheme, the onboard SONIC interrupt gets |
128 | * moved from level 2 to level 3. Unfortunately we still get some |
129 | * level 2 interrupts so register the handler for both. |
130 | */ |
131 | if (dev->irq == IRQ_AUTO_3) { |
132 | retval = request_irq(irq: IRQ_NUBUS_9, handler: sonic_interrupt, flags: 0, |
133 | name: "sonic" , dev); |
134 | if (retval) { |
135 | printk(KERN_ERR "%s: unable to get IRQ %d.\n" , |
136 | dev->name, IRQ_NUBUS_9); |
137 | goto err_irq; |
138 | } |
139 | } |
140 | retval = sonic_open(dev); |
141 | if (retval) |
142 | goto err_irq_nubus; |
143 | return 0; |
144 | |
145 | err_irq_nubus: |
146 | if (dev->irq == IRQ_AUTO_3) |
147 | free_irq(IRQ_NUBUS_9, dev); |
148 | err_irq: |
149 | free_irq(dev->irq, dev); |
150 | err: |
151 | return retval; |
152 | } |
153 | |
154 | static int macsonic_close(struct net_device* dev) |
155 | { |
156 | int err; |
157 | err = sonic_close(dev); |
158 | free_irq(dev->irq, dev); |
159 | if (dev->irq == IRQ_AUTO_3) |
160 | free_irq(IRQ_NUBUS_9, dev); |
161 | return err; |
162 | } |
163 | |
164 | static const struct net_device_ops macsonic_netdev_ops = { |
165 | .ndo_open = macsonic_open, |
166 | .ndo_stop = macsonic_close, |
167 | .ndo_start_xmit = sonic_send_packet, |
168 | .ndo_set_rx_mode = sonic_multicast_list, |
169 | .ndo_tx_timeout = sonic_tx_timeout, |
170 | .ndo_get_stats = sonic_get_stats, |
171 | .ndo_validate_addr = eth_validate_addr, |
172 | .ndo_set_mac_address = eth_mac_addr, |
173 | }; |
174 | |
175 | static int macsonic_init(struct net_device *dev) |
176 | { |
177 | struct sonic_local* lp = netdev_priv(dev); |
178 | int err = sonic_alloc_descriptors(dev); |
179 | |
180 | if (err) |
181 | return err; |
182 | |
183 | dev->netdev_ops = &macsonic_netdev_ops; |
184 | dev->watchdog_timeo = TX_TIMEOUT; |
185 | |
186 | /* |
187 | * clear tally counter |
188 | */ |
189 | SONIC_WRITE(SONIC_CRCT, 0xffff); |
190 | SONIC_WRITE(SONIC_FAET, 0xffff); |
191 | SONIC_WRITE(SONIC_MPT, 0xffff); |
192 | |
193 | return 0; |
194 | } |
195 | |
196 | #define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \ |
197 | memcmp(mac, "\x00\xA0\x40", 3) && \ |
198 | memcmp(mac, "\x00\x80\x19", 3) && \ |
199 | memcmp(mac, "\x00\x05\x02", 3)) |
200 | |
201 | static void mac_onboard_sonic_ethernet_addr(struct net_device *dev) |
202 | { |
203 | struct sonic_local *lp = netdev_priv(dev); |
204 | const int prom_addr = ONBOARD_SONIC_PROM_BASE; |
205 | unsigned short val; |
206 | u8 addr[ETH_ALEN]; |
207 | |
208 | /* |
209 | * On NuBus boards we can sometimes look in the ROM resources. |
210 | * No such luck for comm-slot/onboard. |
211 | * On the PowerBook 520, the PROM base address is a mystery. |
212 | */ |
213 | if (hwreg_present((void *)prom_addr)) { |
214 | int i; |
215 | |
216 | for (i = 0; i < 6; i++) |
217 | addr[i] = SONIC_READ_PROM(i); |
218 | eth_hw_addr_set(dev, addr); |
219 | if (!INVALID_MAC(dev->dev_addr)) |
220 | return; |
221 | |
222 | /* |
223 | * Most of the time, the address is bit-reversed. The NetBSD |
224 | * source has a rather long and detailed historical account of |
225 | * why this is so. |
226 | */ |
227 | bit_reverse_addr(addr); |
228 | eth_hw_addr_set(dev, addr); |
229 | if (!INVALID_MAC(dev->dev_addr)) |
230 | return; |
231 | |
232 | /* |
233 | * If we still have what seems to be a bogus address, we'll |
234 | * look in the CAM. The top entry should be ours. |
235 | */ |
236 | printk(KERN_WARNING "macsonic: MAC address in PROM seems " |
237 | "to be invalid, trying CAM\n" ); |
238 | } else { |
239 | printk(KERN_WARNING "macsonic: cannot read MAC address from " |
240 | "PROM, trying CAM\n" ); |
241 | } |
242 | |
243 | /* This only works if MacOS has already initialized the card. */ |
244 | |
245 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
246 | SONIC_WRITE(SONIC_CEP, 15); |
247 | |
248 | val = SONIC_READ(SONIC_CAP2); |
249 | addr[5] = val >> 8; |
250 | addr[4] = val & 0xff; |
251 | val = SONIC_READ(SONIC_CAP1); |
252 | addr[3] = val >> 8; |
253 | addr[2] = val & 0xff; |
254 | val = SONIC_READ(SONIC_CAP0); |
255 | addr[1] = val >> 8; |
256 | addr[0] = val & 0xff; |
257 | eth_hw_addr_set(dev, addr); |
258 | |
259 | if (!INVALID_MAC(dev->dev_addr)) |
260 | return; |
261 | |
262 | /* Still nonsense ... messed up someplace! */ |
263 | |
264 | printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 " |
265 | "seems invalid, will use a random MAC\n" ); |
266 | eth_hw_addr_random(dev); |
267 | } |
268 | |
269 | static int mac_onboard_sonic_probe(struct net_device *dev) |
270 | { |
271 | struct sonic_local* lp = netdev_priv(dev); |
272 | int sr; |
273 | bool commslot = macintosh_config->expansion_type == MAC_EXP_PDS_COMM; |
274 | |
275 | /* Bogus probing, on the models which may or may not have |
276 | Ethernet (BTW, the Ethernet *is* always at the same |
277 | address, and nothing else lives there, at least if Apple's |
278 | documentation is to be believed) */ |
279 | if (commslot || macintosh_config->ident == MAC_MODEL_C610) { |
280 | int card_present; |
281 | |
282 | card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS); |
283 | if (!card_present) { |
284 | pr_info("Onboard/comm-slot SONIC not found\n" ); |
285 | return -ENODEV; |
286 | } |
287 | } |
288 | |
289 | /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset |
290 | * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ |
291 | dev->base_addr = ONBOARD_SONIC_REGISTERS; |
292 | if (via_alt_mapping) |
293 | dev->irq = IRQ_AUTO_3; |
294 | else |
295 | dev->irq = IRQ_NUBUS_9; |
296 | |
297 | /* The PowerBook's SONIC is 16 bit always. */ |
298 | if (macintosh_config->ident == MAC_MODEL_PB520) { |
299 | lp->reg_offset = 0; |
300 | lp->dma_bitmode = SONIC_BITMODE16; |
301 | } else if (commslot) { |
302 | /* Some of the comm-slot cards are 16 bit. But some |
303 | of them are not. The 32-bit cards use offset 2 and |
304 | have known revisions, we try reading the revision |
305 | register at offset 2, if we don't get a known revision |
306 | we assume 16 bit at offset 0. */ |
307 | lp->reg_offset = 2; |
308 | lp->dma_bitmode = SONIC_BITMODE16; |
309 | |
310 | sr = SONIC_READ(SONIC_SR); |
311 | if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101) |
312 | /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */ |
313 | lp->dma_bitmode = SONIC_BITMODE32; |
314 | else { |
315 | lp->dma_bitmode = SONIC_BITMODE16; |
316 | lp->reg_offset = 0; |
317 | } |
318 | } else { |
319 | /* All onboard cards are at offset 2 with 32 bit DMA. */ |
320 | lp->reg_offset = 2; |
321 | lp->dma_bitmode = SONIC_BITMODE32; |
322 | } |
323 | |
324 | pr_info("Onboard/comm-slot SONIC, revision 0x%04x, %d bit DMA, register offset %d\n" , |
325 | SONIC_READ(SONIC_SR), lp->dma_bitmode ? 32 : 16, |
326 | lp->reg_offset); |
327 | |
328 | /* This is sometimes useful to find out how MacOS configured the card */ |
329 | pr_debug("%s: DCR=0x%04x, DCR2=0x%04x\n" , __func__, |
330 | SONIC_READ(SONIC_DCR) & 0xffff, |
331 | SONIC_READ(SONIC_DCR2) & 0xffff); |
332 | |
333 | /* Software reset, then initialize control registers. */ |
334 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
335 | |
336 | SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS | |
337 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
338 | (lp->dma_bitmode ? SONIC_DCR_DW : 0)); |
339 | |
340 | /* This *must* be written back to in order to restore the |
341 | * extended programmable output bits, as it may not have been |
342 | * initialised since the hardware reset. */ |
343 | SONIC_WRITE(SONIC_DCR2, 0); |
344 | |
345 | /* Clear *and* disable interrupts to be on the safe side */ |
346 | SONIC_WRITE(SONIC_IMR, 0); |
347 | SONIC_WRITE(SONIC_ISR, 0x7fff); |
348 | |
349 | /* Now look for the MAC address. */ |
350 | mac_onboard_sonic_ethernet_addr(dev); |
351 | |
352 | pr_info("SONIC ethernet @%08lx, MAC %pM, IRQ %d\n" , |
353 | dev->base_addr, dev->dev_addr, dev->irq); |
354 | |
355 | /* Shared init code */ |
356 | return macsonic_init(dev); |
357 | } |
358 | |
359 | static int mac_sonic_nubus_ethernet_addr(struct net_device *dev, |
360 | unsigned long prom_addr, int id) |
361 | { |
362 | u8 addr[ETH_ALEN]; |
363 | int i; |
364 | |
365 | for(i = 0; i < 6; i++) |
366 | addr[i] = SONIC_READ_PROM(i); |
367 | |
368 | /* Some of the addresses are bit-reversed */ |
369 | if (id != MACSONIC_DAYNA) |
370 | bit_reverse_addr(addr); |
371 | eth_hw_addr_set(dev, addr); |
372 | |
373 | return 0; |
374 | } |
375 | |
376 | static int macsonic_ident(struct nubus_rsrc *fres) |
377 | { |
378 | if (fres->dr_hw == NUBUS_DRHW_ASANTE_LC && |
379 | fres->dr_sw == NUBUS_DRSW_SONIC_LC) |
380 | return MACSONIC_DAYNALINK; |
381 | if (fres->dr_hw == NUBUS_DRHW_SONIC && |
382 | fres->dr_sw == NUBUS_DRSW_APPLE) { |
383 | /* There has to be a better way to do this... */ |
384 | if (strstr(fres->board->name, "DuoDock" )) |
385 | return MACSONIC_DUODOCK; |
386 | else |
387 | return MACSONIC_APPLE; |
388 | } |
389 | |
390 | if (fres->dr_hw == NUBUS_DRHW_SMC9194 && |
391 | fres->dr_sw == NUBUS_DRSW_DAYNA) |
392 | return MACSONIC_DAYNA; |
393 | |
394 | if (fres->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC && |
395 | fres->dr_sw == 0) { /* huh? */ |
396 | return MACSONIC_APPLE16; |
397 | } |
398 | return -1; |
399 | } |
400 | |
401 | static int mac_sonic_nubus_probe_board(struct nubus_board *board, int id, |
402 | struct net_device *dev) |
403 | { |
404 | struct sonic_local* lp = netdev_priv(dev); |
405 | unsigned long base_addr, prom_addr; |
406 | u16 sonic_dcr; |
407 | int reg_offset, dma_bitmode; |
408 | |
409 | switch (id) { |
410 | case MACSONIC_DUODOCK: |
411 | base_addr = board->slot_addr + DUODOCK_SONIC_REGISTERS; |
412 | prom_addr = board->slot_addr + DUODOCK_SONIC_PROM_BASE; |
413 | sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 | |
414 | SONIC_DCR_TFT0; |
415 | reg_offset = 2; |
416 | dma_bitmode = SONIC_BITMODE32; |
417 | break; |
418 | case MACSONIC_APPLE: |
419 | base_addr = board->slot_addr + APPLE_SONIC_REGISTERS; |
420 | prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE; |
421 | sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0; |
422 | reg_offset = 0; |
423 | dma_bitmode = SONIC_BITMODE32; |
424 | break; |
425 | case MACSONIC_APPLE16: |
426 | base_addr = board->slot_addr + APPLE_SONIC_REGISTERS; |
427 | prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE; |
428 | sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
429 | SONIC_DCR_PO1 | SONIC_DCR_BMS; |
430 | reg_offset = 0; |
431 | dma_bitmode = SONIC_BITMODE16; |
432 | break; |
433 | case MACSONIC_DAYNALINK: |
434 | base_addr = board->slot_addr + APPLE_SONIC_REGISTERS; |
435 | prom_addr = board->slot_addr + DAYNALINK_PROM_BASE; |
436 | sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
437 | SONIC_DCR_PO1 | SONIC_DCR_BMS; |
438 | reg_offset = 0; |
439 | dma_bitmode = SONIC_BITMODE16; |
440 | break; |
441 | case MACSONIC_DAYNA: |
442 | base_addr = board->slot_addr + DAYNA_SONIC_REGISTERS; |
443 | prom_addr = board->slot_addr + DAYNA_SONIC_MAC_ADDR; |
444 | sonic_dcr = SONIC_DCR_BMS | |
445 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1; |
446 | reg_offset = 0; |
447 | dma_bitmode = SONIC_BITMODE16; |
448 | break; |
449 | default: |
450 | printk(KERN_ERR "macsonic: WTF, id is %d\n" , id); |
451 | return -ENODEV; |
452 | } |
453 | |
454 | /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset |
455 | * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ |
456 | dev->base_addr = base_addr; |
457 | lp->reg_offset = reg_offset; |
458 | lp->dma_bitmode = dma_bitmode; |
459 | dev->irq = SLOT2IRQ(board->slot); |
460 | |
461 | dev_info(&board->dev, "%s, revision 0x%04x, %d bit DMA, register offset %d\n" , |
462 | board->name, SONIC_READ(SONIC_SR), |
463 | lp->dma_bitmode ? 32 : 16, lp->reg_offset); |
464 | |
465 | /* This is sometimes useful to find out how MacOS configured the card */ |
466 | dev_dbg(&board->dev, "%s: DCR=0x%04x, DCR2=0x%04x\n" , __func__, |
467 | SONIC_READ(SONIC_DCR) & 0xffff, |
468 | SONIC_READ(SONIC_DCR2) & 0xffff); |
469 | |
470 | /* Software reset, then initialize control registers. */ |
471 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
472 | SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0)); |
473 | /* This *must* be written back to in order to restore the |
474 | * extended programmable output bits, since it may not have been |
475 | * initialised since the hardware reset. */ |
476 | SONIC_WRITE(SONIC_DCR2, 0); |
477 | |
478 | /* Clear *and* disable interrupts to be on the safe side */ |
479 | SONIC_WRITE(SONIC_IMR, 0); |
480 | SONIC_WRITE(SONIC_ISR, 0x7fff); |
481 | |
482 | /* Now look for the MAC address. */ |
483 | if (mac_sonic_nubus_ethernet_addr(dev, prom_addr, id) != 0) |
484 | return -ENODEV; |
485 | |
486 | dev_info(&board->dev, "SONIC ethernet @%08lx, MAC %pM, IRQ %d\n" , |
487 | dev->base_addr, dev->dev_addr, dev->irq); |
488 | |
489 | /* Shared init code */ |
490 | return macsonic_init(dev); |
491 | } |
492 | |
493 | static int mac_sonic_platform_probe(struct platform_device *pdev) |
494 | { |
495 | struct net_device *dev; |
496 | struct sonic_local *lp; |
497 | int err; |
498 | |
499 | dev = alloc_etherdev(sizeof(struct sonic_local)); |
500 | if (!dev) |
501 | return -ENOMEM; |
502 | |
503 | lp = netdev_priv(dev); |
504 | lp->device = &pdev->dev; |
505 | SET_NETDEV_DEV(dev, &pdev->dev); |
506 | platform_set_drvdata(pdev, data: dev); |
507 | |
508 | err = mac_onboard_sonic_probe(dev); |
509 | if (err) |
510 | goto out; |
511 | |
512 | sonic_msg_init(dev); |
513 | |
514 | err = register_netdev(dev); |
515 | if (err) |
516 | goto undo_probe; |
517 | |
518 | return 0; |
519 | |
520 | undo_probe: |
521 | dma_free_coherent(dev: lp->device, |
522 | SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
523 | cpu_addr: lp->descriptors, dma_handle: lp->descriptors_laddr); |
524 | out: |
525 | free_netdev(dev); |
526 | |
527 | return err; |
528 | } |
529 | |
530 | MODULE_DESCRIPTION("Macintosh SONIC ethernet driver" ); |
531 | MODULE_ALIAS("platform:macsonic" ); |
532 | |
533 | #include "sonic.c" |
534 | |
535 | static void mac_sonic_platform_remove(struct platform_device *pdev) |
536 | { |
537 | struct net_device *dev = platform_get_drvdata(pdev); |
538 | struct sonic_local* lp = netdev_priv(dev); |
539 | |
540 | unregister_netdev(dev); |
541 | dma_free_coherent(dev: lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
542 | cpu_addr: lp->descriptors, dma_handle: lp->descriptors_laddr); |
543 | free_netdev(dev); |
544 | } |
545 | |
546 | static struct platform_driver mac_sonic_platform_driver = { |
547 | .probe = mac_sonic_platform_probe, |
548 | .remove_new = mac_sonic_platform_remove, |
549 | .driver = { |
550 | .name = "macsonic" , |
551 | }, |
552 | }; |
553 | |
554 | static int mac_sonic_nubus_probe(struct nubus_board *board) |
555 | { |
556 | struct net_device *ndev; |
557 | struct sonic_local *lp; |
558 | struct nubus_rsrc *fres; |
559 | int id = -1; |
560 | int err; |
561 | |
562 | /* The platform driver will handle a PDS or Comm Slot card (even if |
563 | * it has a pseudoslot declaration ROM). |
564 | */ |
565 | if (macintosh_config->expansion_type == MAC_EXP_PDS_COMM) |
566 | return -ENODEV; |
567 | |
568 | for_each_board_func_rsrc(board, fres) { |
569 | if (fres->category != NUBUS_CAT_NETWORK || |
570 | fres->type != NUBUS_TYPE_ETHERNET) |
571 | continue; |
572 | |
573 | id = macsonic_ident(fres); |
574 | if (id != -1) |
575 | break; |
576 | } |
577 | if (!fres) |
578 | return -ENODEV; |
579 | |
580 | ndev = alloc_etherdev(sizeof(struct sonic_local)); |
581 | if (!ndev) |
582 | return -ENOMEM; |
583 | |
584 | lp = netdev_priv(dev: ndev); |
585 | lp->device = &board->dev; |
586 | SET_NETDEV_DEV(ndev, &board->dev); |
587 | |
588 | err = mac_sonic_nubus_probe_board(board, id, dev: ndev); |
589 | if (err) |
590 | goto out; |
591 | |
592 | sonic_msg_init(dev: ndev); |
593 | |
594 | err = register_netdev(dev: ndev); |
595 | if (err) |
596 | goto undo_probe; |
597 | |
598 | nubus_set_drvdata(board, data: ndev); |
599 | |
600 | return 0; |
601 | |
602 | undo_probe: |
603 | dma_free_coherent(dev: lp->device, |
604 | SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
605 | cpu_addr: lp->descriptors, dma_handle: lp->descriptors_laddr); |
606 | out: |
607 | free_netdev(dev: ndev); |
608 | return err; |
609 | } |
610 | |
611 | static void mac_sonic_nubus_remove(struct nubus_board *board) |
612 | { |
613 | struct net_device *ndev = nubus_get_drvdata(board); |
614 | struct sonic_local *lp = netdev_priv(dev: ndev); |
615 | |
616 | unregister_netdev(dev: ndev); |
617 | dma_free_coherent(dev: lp->device, |
618 | SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
619 | cpu_addr: lp->descriptors, dma_handle: lp->descriptors_laddr); |
620 | free_netdev(dev: ndev); |
621 | } |
622 | |
623 | static struct nubus_driver mac_sonic_nubus_driver = { |
624 | .probe = mac_sonic_nubus_probe, |
625 | .remove = mac_sonic_nubus_remove, |
626 | .driver = { |
627 | .name = "macsonic-nubus" , |
628 | .owner = THIS_MODULE, |
629 | }, |
630 | }; |
631 | |
632 | static int perr, nerr; |
633 | |
634 | static int __init mac_sonic_init(void) |
635 | { |
636 | perr = platform_driver_register(&mac_sonic_platform_driver); |
637 | nerr = nubus_driver_register(ndrv: &mac_sonic_nubus_driver); |
638 | return 0; |
639 | } |
640 | module_init(mac_sonic_init); |
641 | |
642 | static void __exit mac_sonic_exit(void) |
643 | { |
644 | if (!perr) |
645 | platform_driver_unregister(&mac_sonic_platform_driver); |
646 | if (!nerr) |
647 | nubus_driver_unregister(ndrv: &mac_sonic_nubus_driver); |
648 | } |
649 | module_exit(mac_sonic_exit); |
650 | |