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1da177e4 LT |
1 | /* |
2 | * linux/drivers/acorn/net/ether1.c | |
3 | * | |
4 | * Copyright (C) 1996-2000 Russell King | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * Acorn ether1 driver (82586 chip) for Acorn machines | |
11 | * | |
12 | * We basically keep two queues in the cards memory - one for transmit | |
13 | * and one for receive. Each has a head and a tail. The head is where | |
14 | * we/the chip adds packets to be transmitted/received, and the tail | |
15 | * is where the transmitter has got to/where the receiver will stop. | |
16 | * Both of these queues are circular, and since the chip is running | |
17 | * all the time, we have to be careful when we modify the pointers etc | |
18 | * so that the buffer memory contents is valid all the time. | |
19 | * | |
20 | * Change log: | |
21 | * 1.00 RMK Released | |
22 | * 1.01 RMK 19/03/1996 Transfers the last odd byte onto/off of the card now. | |
23 | * 1.02 RMK 25/05/1997 Added code to restart RU if it goes not ready | |
24 | * 1.03 RMK 14/09/1997 Cleaned up the handling of a reset during the TX interrupt. | |
25 | * Should prevent lockup. | |
26 | * 1.04 RMK 17/09/1997 Added more info when initialsation of chip goes wrong. | |
27 | * TDR now only reports failure when chip reports non-zero | |
28 | * TDR time-distance. | |
29 | * 1.05 RMK 31/12/1997 Removed calls to dev_tint for 2.1 | |
30 | * 1.06 RMK 10/02/2000 Updated for 2.3.43 | |
31 | * 1.07 RMK 13/05/2000 Updated for 2.3.99-pre8 | |
32 | */ | |
33 | ||
34 | #include <linux/module.h> | |
35 | #include <linux/kernel.h> | |
1da177e4 LT |
36 | #include <linux/types.h> |
37 | #include <linux/fcntl.h> | |
38 | #include <linux/interrupt.h> | |
1da177e4 LT |
39 | #include <linux/ioport.h> |
40 | #include <linux/in.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/string.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/device.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/netdevice.h> | |
47 | #include <linux/etherdevice.h> | |
48 | #include <linux/skbuff.h> | |
49 | #include <linux/bitops.h> | |
50 | ||
1da177e4 LT |
51 | #include <asm/io.h> |
52 | #include <asm/dma.h> | |
53 | #include <asm/ecard.h> | |
54 | ||
55 | #define __ETHER1_C | |
56 | #include "ether1.h" | |
57 | ||
58 | static unsigned int net_debug = NET_DEBUG; | |
59 | ||
60 | #define BUFFER_SIZE 0x10000 | |
61 | #define TX_AREA_START 0x00100 | |
62 | #define TX_AREA_END 0x05000 | |
63 | #define RX_AREA_START 0x05000 | |
64 | #define RX_AREA_END 0x0fc00 | |
65 | ||
66 | static int ether1_open(struct net_device *dev); | |
67 | static int ether1_sendpacket(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 68 | static irqreturn_t ether1_interrupt(int irq, void *dev_id); |
1da177e4 | 69 | static int ether1_close(struct net_device *dev); |
1da177e4 LT |
70 | static void ether1_setmulticastlist(struct net_device *dev); |
71 | static void ether1_timeout(struct net_device *dev); | |
72 | ||
73 | /* ------------------------------------------------------------------------- */ | |
74 | ||
663c2a69 | 75 | static char version[] = "ether1 ethernet driver (c) 2000 Russell King v1.07\n"; |
1da177e4 LT |
76 | |
77 | #define BUS_16 16 | |
78 | #define BUS_8 8 | |
79 | ||
80 | /* ------------------------------------------------------------------------- */ | |
81 | ||
82 | #define DISABLEIRQS 1 | |
83 | #define NORMALIRQS 0 | |
84 | ||
85 | #define ether1_readw(dev, addr, type, offset, svflgs) ether1_inw_p (dev, addr + (int)(&((type *)0)->offset), svflgs) | |
86 | #define ether1_writew(dev, val, addr, type, offset, svflgs) ether1_outw_p (dev, val, addr + (int)(&((type *)0)->offset), svflgs) | |
87 | ||
88 | static inline unsigned short | |
89 | ether1_inw_p (struct net_device *dev, int addr, int svflgs) | |
90 | { | |
91 | unsigned long flags; | |
92 | unsigned short ret; | |
93 | ||
94 | if (svflgs) | |
95 | local_irq_save (flags); | |
96 | ||
97 | writeb(addr >> 12, REG_PAGE); | |
98 | ret = readw(ETHER1_RAM + ((addr & 4095) << 1)); | |
99 | if (svflgs) | |
100 | local_irq_restore (flags); | |
101 | return ret; | |
102 | } | |
103 | ||
104 | static inline void | |
105 | ether1_outw_p (struct net_device *dev, unsigned short val, int addr, int svflgs) | |
106 | { | |
107 | unsigned long flags; | |
108 | ||
109 | if (svflgs) | |
110 | local_irq_save (flags); | |
111 | ||
112 | writeb(addr >> 12, REG_PAGE); | |
113 | writew(val, ETHER1_RAM + ((addr & 4095) << 1)); | |
114 | if (svflgs) | |
115 | local_irq_restore (flags); | |
116 | } | |
117 | ||
118 | /* | |
119 | * Some inline assembler to allow fast transfers on to/off of the card. | |
120 | * Since this driver depends on some features presented by the ARM | |
121 | * specific architecture, and that you can't configure this driver | |
122 | * without specifiing ARM mode, this is not a problem. | |
123 | * | |
124 | * This routine is essentially an optimised memcpy from the card's | |
125 | * onboard RAM to kernel memory. | |
126 | */ | |
127 | static void | |
128 | ether1_writebuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length) | |
129 | { | |
130 | unsigned int page, thislen, offset; | |
131 | void __iomem *addr; | |
132 | ||
133 | offset = start & 4095; | |
134 | page = start >> 12; | |
135 | addr = ETHER1_RAM + (offset << 1); | |
136 | ||
137 | if (offset + length > 4096) | |
138 | thislen = 4096 - offset; | |
139 | else | |
140 | thislen = length; | |
141 | ||
142 | do { | |
143 | int used; | |
144 | ||
145 | writeb(page, REG_PAGE); | |
146 | length -= thislen; | |
147 | ||
148 | __asm__ __volatile__( | |
149 | "subs %3, %3, #2\n\ | |
150 | bmi 2f\n\ | |
151 | 1: ldr %0, [%1], #2\n\ | |
152 | mov %0, %0, lsl #16\n\ | |
153 | orr %0, %0, %0, lsr #16\n\ | |
154 | str %0, [%2], #4\n\ | |
155 | subs %3, %3, #2\n\ | |
156 | bmi 2f\n\ | |
157 | ldr %0, [%1], #2\n\ | |
158 | mov %0, %0, lsl #16\n\ | |
159 | orr %0, %0, %0, lsr #16\n\ | |
160 | str %0, [%2], #4\n\ | |
161 | subs %3, %3, #2\n\ | |
162 | bmi 2f\n\ | |
163 | ldr %0, [%1], #2\n\ | |
164 | mov %0, %0, lsl #16\n\ | |
165 | orr %0, %0, %0, lsr #16\n\ | |
166 | str %0, [%2], #4\n\ | |
167 | subs %3, %3, #2\n\ | |
168 | bmi 2f\n\ | |
169 | ldr %0, [%1], #2\n\ | |
170 | mov %0, %0, lsl #16\n\ | |
171 | orr %0, %0, %0, lsr #16\n\ | |
172 | str %0, [%2], #4\n\ | |
173 | subs %3, %3, #2\n\ | |
174 | bpl 1b\n\ | |
175 | 2: adds %3, %3, #1\n\ | |
176 | ldreqb %0, [%1]\n\ | |
177 | streqb %0, [%2]" | |
178 | : "=&r" (used), "=&r" (data) | |
179 | : "r" (addr), "r" (thislen), "1" (data)); | |
180 | ||
181 | addr = ETHER1_RAM; | |
182 | ||
183 | thislen = length; | |
184 | if (thislen > 4096) | |
185 | thislen = 4096; | |
186 | page++; | |
187 | } while (thislen); | |
188 | } | |
189 | ||
190 | static void | |
191 | ether1_readbuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length) | |
192 | { | |
193 | unsigned int page, thislen, offset; | |
194 | void __iomem *addr; | |
195 | ||
196 | offset = start & 4095; | |
197 | page = start >> 12; | |
198 | addr = ETHER1_RAM + (offset << 1); | |
199 | ||
200 | if (offset + length > 4096) | |
201 | thislen = 4096 - offset; | |
202 | else | |
203 | thislen = length; | |
204 | ||
205 | do { | |
206 | int used; | |
207 | ||
208 | writeb(page, REG_PAGE); | |
209 | length -= thislen; | |
210 | ||
211 | __asm__ __volatile__( | |
212 | "subs %3, %3, #2\n\ | |
213 | bmi 2f\n\ | |
214 | 1: ldr %0, [%2], #4\n\ | |
215 | strb %0, [%1], #1\n\ | |
216 | mov %0, %0, lsr #8\n\ | |
217 | strb %0, [%1], #1\n\ | |
218 | subs %3, %3, #2\n\ | |
219 | bmi 2f\n\ | |
220 | ldr %0, [%2], #4\n\ | |
221 | strb %0, [%1], #1\n\ | |
222 | mov %0, %0, lsr #8\n\ | |
223 | strb %0, [%1], #1\n\ | |
224 | subs %3, %3, #2\n\ | |
225 | bmi 2f\n\ | |
226 | ldr %0, [%2], #4\n\ | |
227 | strb %0, [%1], #1\n\ | |
228 | mov %0, %0, lsr #8\n\ | |
229 | strb %0, [%1], #1\n\ | |
230 | subs %3, %3, #2\n\ | |
231 | bmi 2f\n\ | |
232 | ldr %0, [%2], #4\n\ | |
233 | strb %0, [%1], #1\n\ | |
234 | mov %0, %0, lsr #8\n\ | |
235 | strb %0, [%1], #1\n\ | |
236 | subs %3, %3, #2\n\ | |
237 | bpl 1b\n\ | |
238 | 2: adds %3, %3, #1\n\ | |
239 | ldreqb %0, [%2]\n\ | |
240 | streqb %0, [%1]" | |
241 | : "=&r" (used), "=&r" (data) | |
242 | : "r" (addr), "r" (thislen), "1" (data)); | |
243 | ||
244 | addr = ETHER1_RAM; | |
245 | ||
246 | thislen = length; | |
247 | if (thislen > 4096) | |
248 | thislen = 4096; | |
249 | page++; | |
250 | } while (thislen); | |
251 | } | |
252 | ||
663c2a69 | 253 | static int |
1da177e4 LT |
254 | ether1_ramtest(struct net_device *dev, unsigned char byte) |
255 | { | |
256 | unsigned char *buffer = kmalloc (BUFFER_SIZE, GFP_KERNEL); | |
257 | int i, ret = BUFFER_SIZE; | |
258 | int max_errors = 15; | |
259 | int bad = -1; | |
260 | int bad_start = 0; | |
261 | ||
262 | if (!buffer) | |
263 | return 1; | |
264 | ||
265 | memset (buffer, byte, BUFFER_SIZE); | |
266 | ether1_writebuffer (dev, buffer, 0, BUFFER_SIZE); | |
267 | memset (buffer, byte ^ 0xff, BUFFER_SIZE); | |
268 | ether1_readbuffer (dev, buffer, 0, BUFFER_SIZE); | |
269 | ||
270 | for (i = 0; i < BUFFER_SIZE; i++) { | |
271 | if (buffer[i] != byte) { | |
272 | if (max_errors >= 0 && bad != buffer[i]) { | |
273 | if (bad != -1) | |
274 | printk ("\n"); | |
275 | printk (KERN_CRIT "%s: RAM failed with (%02X instead of %02X) at 0x%04X", | |
276 | dev->name, buffer[i], byte, i); | |
277 | ret = -ENODEV; | |
278 | max_errors --; | |
279 | bad = buffer[i]; | |
280 | bad_start = i; | |
281 | } | |
282 | } else { | |
283 | if (bad != -1) { | |
284 | if (bad_start == i - 1) | |
285 | printk ("\n"); | |
286 | else | |
287 | printk (" - 0x%04X\n", i - 1); | |
288 | bad = -1; | |
289 | } | |
290 | } | |
291 | } | |
292 | ||
293 | if (bad != -1) | |
294 | printk (" - 0x%04X\n", BUFFER_SIZE); | |
295 | kfree (buffer); | |
296 | ||
297 | return ret; | |
298 | } | |
299 | ||
300 | static int | |
301 | ether1_reset (struct net_device *dev) | |
302 | { | |
303 | writeb(CTRL_RST|CTRL_ACK, REG_CONTROL); | |
304 | return BUS_16; | |
305 | } | |
306 | ||
663c2a69 | 307 | static int |
1da177e4 LT |
308 | ether1_init_2(struct net_device *dev) |
309 | { | |
310 | int i; | |
311 | dev->mem_start = 0; | |
312 | ||
313 | i = ether1_ramtest (dev, 0x5a); | |
314 | ||
315 | if (i > 0) | |
316 | i = ether1_ramtest (dev, 0x1e); | |
317 | ||
318 | if (i <= 0) | |
319 | return -ENODEV; | |
320 | ||
321 | dev->mem_end = i; | |
322 | return 0; | |
323 | } | |
324 | ||
325 | /* | |
326 | * These are the structures that are loaded into the ether RAM card to | |
327 | * initialise the 82586 | |
328 | */ | |
329 | ||
330 | /* at 0x0100 */ | |
331 | #define NOP_ADDR (TX_AREA_START) | |
332 | #define NOP_SIZE (0x06) | |
333 | static nop_t init_nop = { | |
334 | 0, | |
335 | CMD_NOP, | |
336 | NOP_ADDR | |
337 | }; | |
338 | ||
339 | /* at 0x003a */ | |
340 | #define TDR_ADDR (0x003a) | |
341 | #define TDR_SIZE (0x08) | |
342 | static tdr_t init_tdr = { | |
343 | 0, | |
344 | CMD_TDR | CMD_INTR, | |
345 | NOP_ADDR, | |
346 | 0 | |
347 | }; | |
348 | ||
349 | /* at 0x002e */ | |
350 | #define MC_ADDR (0x002e) | |
351 | #define MC_SIZE (0x0c) | |
352 | static mc_t init_mc = { | |
353 | 0, | |
354 | CMD_SETMULTICAST, | |
355 | TDR_ADDR, | |
356 | 0, | |
357 | { { 0, } } | |
358 | }; | |
359 | ||
360 | /* at 0x0022 */ | |
361 | #define SA_ADDR (0x0022) | |
362 | #define SA_SIZE (0x0c) | |
363 | static sa_t init_sa = { | |
364 | 0, | |
365 | CMD_SETADDRESS, | |
366 | MC_ADDR, | |
367 | { 0, } | |
368 | }; | |
369 | ||
370 | /* at 0x0010 */ | |
371 | #define CFG_ADDR (0x0010) | |
372 | #define CFG_SIZE (0x12) | |
373 | static cfg_t init_cfg = { | |
374 | 0, | |
375 | CMD_CONFIG, | |
376 | SA_ADDR, | |
377 | 8, | |
378 | 8, | |
379 | CFG8_SRDY, | |
380 | CFG9_PREAMB8 | CFG9_ADDRLENBUF | CFG9_ADDRLEN(6), | |
381 | 0, | |
382 | 0x60, | |
383 | 0, | |
384 | CFG13_RETRY(15) | CFG13_SLOTH(2), | |
385 | 0, | |
386 | }; | |
387 | ||
388 | /* at 0x0000 */ | |
389 | #define SCB_ADDR (0x0000) | |
390 | #define SCB_SIZE (0x10) | |
391 | static scb_t init_scb = { | |
392 | 0, | |
393 | SCB_CMDACKRNR | SCB_CMDACKCNA | SCB_CMDACKFR | SCB_CMDACKCX, | |
394 | CFG_ADDR, | |
395 | RX_AREA_START, | |
396 | 0, | |
397 | 0, | |
398 | 0, | |
399 | 0 | |
400 | }; | |
401 | ||
402 | /* at 0xffee */ | |
403 | #define ISCP_ADDR (0xffee) | |
404 | #define ISCP_SIZE (0x08) | |
405 | static iscp_t init_iscp = { | |
406 | 1, | |
407 | SCB_ADDR, | |
408 | 0x0000, | |
409 | 0x0000 | |
410 | }; | |
411 | ||
412 | /* at 0xfff6 */ | |
413 | #define SCP_ADDR (0xfff6) | |
414 | #define SCP_SIZE (0x0a) | |
415 | static scp_t init_scp = { | |
416 | SCP_SY_16BBUS, | |
417 | { 0, 0 }, | |
418 | ISCP_ADDR, | |
419 | 0 | |
420 | }; | |
421 | ||
422 | #define RFD_SIZE (0x16) | |
423 | static rfd_t init_rfd = { | |
424 | 0, | |
425 | 0, | |
426 | 0, | |
427 | 0, | |
428 | { 0, }, | |
429 | { 0, }, | |
430 | 0 | |
431 | }; | |
432 | ||
433 | #define RBD_SIZE (0x0a) | |
434 | static rbd_t init_rbd = { | |
435 | 0, | |
436 | 0, | |
437 | 0, | |
438 | 0, | |
439 | ETH_FRAME_LEN + 8 | |
440 | }; | |
441 | ||
442 | #define TX_SIZE (0x08) | |
443 | #define TBD_SIZE (0x08) | |
444 | ||
445 | static int | |
446 | ether1_init_for_open (struct net_device *dev) | |
447 | { | |
448 | int i, status, addr, next, next2; | |
449 | int failures = 0; | |
450 | unsigned long timeout; | |
451 | ||
452 | writeb(CTRL_RST|CTRL_ACK, REG_CONTROL); | |
453 | ||
454 | for (i = 0; i < 6; i++) | |
455 | init_sa.sa_addr[i] = dev->dev_addr[i]; | |
456 | ||
457 | /* load data structures into ether1 RAM */ | |
458 | ether1_writebuffer (dev, &init_scp, SCP_ADDR, SCP_SIZE); | |
459 | ether1_writebuffer (dev, &init_iscp, ISCP_ADDR, ISCP_SIZE); | |
460 | ether1_writebuffer (dev, &init_scb, SCB_ADDR, SCB_SIZE); | |
461 | ether1_writebuffer (dev, &init_cfg, CFG_ADDR, CFG_SIZE); | |
462 | ether1_writebuffer (dev, &init_sa, SA_ADDR, SA_SIZE); | |
463 | ether1_writebuffer (dev, &init_mc, MC_ADDR, MC_SIZE); | |
464 | ether1_writebuffer (dev, &init_tdr, TDR_ADDR, TDR_SIZE); | |
465 | ether1_writebuffer (dev, &init_nop, NOP_ADDR, NOP_SIZE); | |
466 | ||
467 | if (ether1_readw(dev, CFG_ADDR, cfg_t, cfg_command, NORMALIRQS) != CMD_CONFIG) { | |
468 | printk (KERN_ERR "%s: detected either RAM fault or compiler bug\n", | |
469 | dev->name); | |
470 | return 1; | |
471 | } | |
472 | ||
473 | /* | |
474 | * setup circularly linked list of { rfd, rbd, buffer }, with | |
475 | * all rfds circularly linked, rbds circularly linked. | |
476 | * First rfd is linked to scp, first rbd is linked to first | |
477 | * rfd. Last rbd has a suspend command. | |
478 | */ | |
479 | addr = RX_AREA_START; | |
480 | do { | |
481 | next = addr + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10; | |
482 | next2 = next + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10; | |
483 | ||
484 | if (next2 >= RX_AREA_END) { | |
485 | next = RX_AREA_START; | |
486 | init_rfd.rfd_command = RFD_CMDEL | RFD_CMDSUSPEND; | |
487 | priv(dev)->rx_tail = addr; | |
488 | } else | |
489 | init_rfd.rfd_command = 0; | |
490 | if (addr == RX_AREA_START) | |
491 | init_rfd.rfd_rbdoffset = addr + RFD_SIZE; | |
492 | else | |
493 | init_rfd.rfd_rbdoffset = 0; | |
494 | init_rfd.rfd_link = next; | |
495 | init_rbd.rbd_link = next + RFD_SIZE; | |
496 | init_rbd.rbd_bufl = addr + RFD_SIZE + RBD_SIZE; | |
497 | ||
498 | ether1_writebuffer (dev, &init_rfd, addr, RFD_SIZE); | |
499 | ether1_writebuffer (dev, &init_rbd, addr + RFD_SIZE, RBD_SIZE); | |
500 | addr = next; | |
501 | } while (next2 < RX_AREA_END); | |
502 | ||
503 | priv(dev)->tx_link = NOP_ADDR; | |
504 | priv(dev)->tx_head = NOP_ADDR + NOP_SIZE; | |
505 | priv(dev)->tx_tail = TDR_ADDR; | |
506 | priv(dev)->rx_head = RX_AREA_START; | |
507 | ||
508 | /* release reset & give 586 a prod */ | |
509 | priv(dev)->resetting = 1; | |
510 | priv(dev)->initialising = 1; | |
511 | writeb(CTRL_RST, REG_CONTROL); | |
512 | writeb(0, REG_CONTROL); | |
513 | writeb(CTRL_CA, REG_CONTROL); | |
514 | ||
515 | /* 586 should now unset iscp.busy */ | |
516 | timeout = jiffies + HZ/2; | |
517 | while (ether1_readw(dev, ISCP_ADDR, iscp_t, iscp_busy, DISABLEIRQS) == 1) { | |
518 | if (time_after(jiffies, timeout)) { | |
519 | printk (KERN_WARNING "%s: can't initialise 82586: iscp is busy\n", dev->name); | |
520 | return 1; | |
521 | } | |
522 | } | |
523 | ||
524 | /* check status of commands that we issued */ | |
525 | timeout += HZ/10; | |
526 | while (((status = ether1_readw(dev, CFG_ADDR, cfg_t, cfg_status, DISABLEIRQS)) | |
527 | & STAT_COMPLETE) == 0) { | |
528 | if (time_after(jiffies, timeout)) | |
529 | break; | |
530 | } | |
531 | ||
532 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
533 | printk (KERN_WARNING "%s: can't initialise 82586: config status %04X\n", dev->name, status); | |
534 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
535 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
536 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
537 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
538 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
539 | failures += 1; | |
540 | } | |
541 | ||
542 | timeout += HZ/10; | |
543 | while (((status = ether1_readw(dev, SA_ADDR, sa_t, sa_status, DISABLEIRQS)) | |
544 | & STAT_COMPLETE) == 0) { | |
545 | if (time_after(jiffies, timeout)) | |
546 | break; | |
547 | } | |
548 | ||
549 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
550 | printk (KERN_WARNING "%s: can't initialise 82586: set address status %04X\n", dev->name, status); | |
551 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
552 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
553 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
554 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
555 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
556 | failures += 1; | |
557 | } | |
558 | ||
559 | timeout += HZ/10; | |
560 | while (((status = ether1_readw(dev, MC_ADDR, mc_t, mc_status, DISABLEIRQS)) | |
561 | & STAT_COMPLETE) == 0) { | |
562 | if (time_after(jiffies, timeout)) | |
563 | break; | |
564 | } | |
565 | ||
566 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
567 | printk (KERN_WARNING "%s: can't initialise 82586: set multicast status %04X\n", dev->name, status); | |
568 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
569 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
570 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
571 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
572 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
573 | failures += 1; | |
574 | } | |
575 | ||
576 | timeout += HZ; | |
577 | while (((status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_status, DISABLEIRQS)) | |
578 | & STAT_COMPLETE) == 0) { | |
579 | if (time_after(jiffies, timeout)) | |
580 | break; | |
581 | } | |
582 | ||
583 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
584 | printk (KERN_WARNING "%s: can't tdr (ignored)\n", dev->name); | |
585 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
586 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
587 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
588 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
589 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
590 | } else { | |
591 | status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_result, DISABLEIRQS); | |
592 | if (status & TDR_XCVRPROB) | |
593 | printk (KERN_WARNING "%s: i/f failed tdr: transceiver problem\n", dev->name); | |
594 | else if ((status & (TDR_SHORT|TDR_OPEN)) && (status & TDR_TIME)) { | |
595 | #ifdef FANCY | |
596 | printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d.%d us away\n", dev->name, | |
597 | status & TDR_SHORT ? "short" : "open", (status & TDR_TIME) / 10, | |
598 | (status & TDR_TIME) % 10); | |
599 | #else | |
600 | printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d clks away\n", dev->name, | |
601 | status & TDR_SHORT ? "short" : "open", (status & TDR_TIME)); | |
602 | #endif | |
603 | } | |
604 | } | |
605 | ||
606 | if (failures) | |
607 | ether1_reset (dev); | |
608 | return failures ? 1 : 0; | |
609 | } | |
610 | ||
611 | /* ------------------------------------------------------------------------- */ | |
612 | ||
613 | static int | |
614 | ether1_txalloc (struct net_device *dev, int size) | |
615 | { | |
616 | int start, tail; | |
617 | ||
618 | size = (size + 1) & ~1; | |
619 | tail = priv(dev)->tx_tail; | |
620 | ||
621 | if (priv(dev)->tx_head + size > TX_AREA_END) { | |
622 | if (tail > priv(dev)->tx_head) | |
623 | return -1; | |
624 | start = TX_AREA_START; | |
625 | if (start + size > tail) | |
626 | return -1; | |
627 | priv(dev)->tx_head = start + size; | |
628 | } else { | |
629 | if (priv(dev)->tx_head < tail && (priv(dev)->tx_head + size) > tail) | |
630 | return -1; | |
631 | start = priv(dev)->tx_head; | |
632 | priv(dev)->tx_head += size; | |
633 | } | |
634 | ||
635 | return start; | |
636 | } | |
637 | ||
638 | static int | |
639 | ether1_open (struct net_device *dev) | |
640 | { | |
1da177e4 LT |
641 | if (request_irq(dev->irq, ether1_interrupt, 0, "ether1", dev)) |
642 | return -EAGAIN; | |
643 | ||
1da177e4 LT |
644 | if (ether1_init_for_open (dev)) { |
645 | free_irq (dev->irq, dev); | |
646 | return -EAGAIN; | |
647 | } | |
648 | ||
649 | netif_start_queue(dev); | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | static void | |
655 | ether1_timeout(struct net_device *dev) | |
656 | { | |
657 | printk(KERN_WARNING "%s: transmit timeout, network cable problem?\n", | |
658 | dev->name); | |
659 | printk(KERN_WARNING "%s: resetting device\n", dev->name); | |
660 | ||
661 | ether1_reset (dev); | |
662 | ||
663 | if (ether1_init_for_open (dev)) | |
664 | printk (KERN_ERR "%s: unable to restart interface\n", dev->name); | |
665 | ||
25aec76a | 666 | dev->stats.tx_errors++; |
1da177e4 LT |
667 | netif_wake_queue(dev); |
668 | } | |
669 | ||
670 | static int | |
671 | ether1_sendpacket (struct sk_buff *skb, struct net_device *dev) | |
672 | { | |
673 | int tmp, tst, nopaddr, txaddr, tbdaddr, dataddr; | |
674 | unsigned long flags; | |
675 | tx_t tx; | |
676 | tbd_t tbd; | |
677 | nop_t nop; | |
678 | ||
679 | if (priv(dev)->restart) { | |
680 | printk(KERN_WARNING "%s: resetting device\n", dev->name); | |
681 | ||
682 | ether1_reset(dev); | |
683 | ||
684 | if (ether1_init_for_open(dev)) | |
685 | printk(KERN_ERR "%s: unable to restart interface\n", dev->name); | |
686 | else | |
687 | priv(dev)->restart = 0; | |
688 | } | |
689 | ||
690 | if (skb->len < ETH_ZLEN) { | |
5b057c6b | 691 | if (skb_padto(skb, ETH_ZLEN)) |
1da177e4 LT |
692 | goto out; |
693 | } | |
694 | ||
695 | /* | |
696 | * insert packet followed by a nop | |
697 | */ | |
698 | txaddr = ether1_txalloc (dev, TX_SIZE); | |
699 | tbdaddr = ether1_txalloc (dev, TBD_SIZE); | |
700 | dataddr = ether1_txalloc (dev, skb->len); | |
701 | nopaddr = ether1_txalloc (dev, NOP_SIZE); | |
702 | ||
703 | tx.tx_status = 0; | |
704 | tx.tx_command = CMD_TX | CMD_INTR; | |
705 | tx.tx_link = nopaddr; | |
706 | tx.tx_tbdoffset = tbdaddr; | |
707 | tbd.tbd_opts = TBD_EOL | skb->len; | |
708 | tbd.tbd_link = I82586_NULL; | |
709 | tbd.tbd_bufl = dataddr; | |
710 | tbd.tbd_bufh = 0; | |
711 | nop.nop_status = 0; | |
712 | nop.nop_command = CMD_NOP; | |
713 | nop.nop_link = nopaddr; | |
714 | ||
715 | local_irq_save(flags); | |
716 | ether1_writebuffer (dev, &tx, txaddr, TX_SIZE); | |
717 | ether1_writebuffer (dev, &tbd, tbdaddr, TBD_SIZE); | |
718 | ether1_writebuffer (dev, skb->data, dataddr, skb->len); | |
719 | ether1_writebuffer (dev, &nop, nopaddr, NOP_SIZE); | |
720 | tmp = priv(dev)->tx_link; | |
721 | priv(dev)->tx_link = nopaddr; | |
722 | ||
723 | /* now reset the previous nop pointer */ | |
724 | ether1_writew(dev, txaddr, tmp, nop_t, nop_link, NORMALIRQS); | |
725 | ||
726 | local_irq_restore(flags); | |
727 | ||
728 | /* handle transmit */ | |
1da177e4 LT |
729 | |
730 | /* check to see if we have room for a full sized ether frame */ | |
731 | tmp = priv(dev)->tx_head; | |
732 | tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN); | |
733 | priv(dev)->tx_head = tmp; | |
734 | dev_kfree_skb (skb); | |
735 | ||
736 | if (tst == -1) | |
737 | netif_stop_queue(dev); | |
738 | ||
739 | out: | |
6ed10654 | 740 | return NETDEV_TX_OK; |
1da177e4 LT |
741 | } |
742 | ||
743 | static void | |
744 | ether1_xmit_done (struct net_device *dev) | |
745 | { | |
746 | nop_t nop; | |
747 | int caddr, tst; | |
748 | ||
749 | caddr = priv(dev)->tx_tail; | |
750 | ||
751 | again: | |
752 | ether1_readbuffer (dev, &nop, caddr, NOP_SIZE); | |
753 | ||
754 | switch (nop.nop_command & CMD_MASK) { | |
755 | case CMD_TDR: | |
756 | /* special case */ | |
757 | if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS) | |
758 | != (unsigned short)I82586_NULL) { | |
759 | ether1_writew(dev, SCB_CMDCUCSTART | SCB_CMDRXSTART, SCB_ADDR, scb_t, | |
760 | scb_command, NORMALIRQS); | |
761 | writeb(CTRL_CA, REG_CONTROL); | |
762 | } | |
763 | priv(dev)->tx_tail = NOP_ADDR; | |
764 | return; | |
765 | ||
766 | case CMD_NOP: | |
767 | if (nop.nop_link == caddr) { | |
768 | if (priv(dev)->initialising == 0) | |
769 | printk (KERN_WARNING "%s: strange command complete with no tx command!\n", dev->name); | |
770 | else | |
771 | priv(dev)->initialising = 0; | |
772 | return; | |
773 | } | |
774 | if (caddr == nop.nop_link) | |
775 | return; | |
776 | caddr = nop.nop_link; | |
777 | goto again; | |
778 | ||
779 | case CMD_TX: | |
780 | if (nop.nop_status & STAT_COMPLETE) | |
781 | break; | |
782 | printk (KERN_ERR "%s: strange command complete without completed command\n", dev->name); | |
783 | priv(dev)->restart = 1; | |
784 | return; | |
785 | ||
786 | default: | |
787 | printk (KERN_WARNING "%s: strange command %d complete! (offset %04X)", dev->name, | |
788 | nop.nop_command & CMD_MASK, caddr); | |
789 | priv(dev)->restart = 1; | |
790 | return; | |
791 | } | |
792 | ||
793 | while (nop.nop_status & STAT_COMPLETE) { | |
794 | if (nop.nop_status & STAT_OK) { | |
25aec76a TK |
795 | dev->stats.tx_packets++; |
796 | dev->stats.collisions += (nop.nop_status & STAT_COLLISIONS); | |
1da177e4 | 797 | } else { |
25aec76a | 798 | dev->stats.tx_errors++; |
1da177e4 LT |
799 | |
800 | if (nop.nop_status & STAT_COLLAFTERTX) | |
25aec76a | 801 | dev->stats.collisions++; |
1da177e4 | 802 | if (nop.nop_status & STAT_NOCARRIER) |
25aec76a | 803 | dev->stats.tx_carrier_errors++; |
1da177e4 LT |
804 | if (nop.nop_status & STAT_TXLOSTCTS) |
805 | printk (KERN_WARNING "%s: cts lost\n", dev->name); | |
806 | if (nop.nop_status & STAT_TXSLOWDMA) | |
25aec76a | 807 | dev->stats.tx_fifo_errors++; |
1da177e4 | 808 | if (nop.nop_status & STAT_COLLEXCESSIVE) |
25aec76a | 809 | dev->stats.collisions += 16; |
1da177e4 LT |
810 | } |
811 | ||
812 | if (nop.nop_link == caddr) { | |
813 | printk (KERN_ERR "%s: tx buffer chaining error: tx command points to itself\n", dev->name); | |
814 | break; | |
815 | } | |
816 | ||
817 | caddr = nop.nop_link; | |
818 | ether1_readbuffer (dev, &nop, caddr, NOP_SIZE); | |
819 | if ((nop.nop_command & CMD_MASK) != CMD_NOP) { | |
820 | printk (KERN_ERR "%s: tx buffer chaining error: no nop after tx command\n", dev->name); | |
821 | break; | |
822 | } | |
823 | ||
824 | if (caddr == nop.nop_link) | |
825 | break; | |
826 | ||
827 | caddr = nop.nop_link; | |
828 | ether1_readbuffer (dev, &nop, caddr, NOP_SIZE); | |
829 | if ((nop.nop_command & CMD_MASK) != CMD_TX) { | |
830 | printk (KERN_ERR "%s: tx buffer chaining error: no tx command after nop\n", dev->name); | |
831 | break; | |
832 | } | |
833 | } | |
834 | priv(dev)->tx_tail = caddr; | |
835 | ||
836 | caddr = priv(dev)->tx_head; | |
837 | tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN); | |
838 | priv(dev)->tx_head = caddr; | |
839 | if (tst != -1) | |
840 | netif_wake_queue(dev); | |
841 | } | |
842 | ||
843 | static void | |
844 | ether1_recv_done (struct net_device *dev) | |
845 | { | |
846 | int status; | |
847 | int nexttail, rbdaddr; | |
848 | rbd_t rbd; | |
849 | ||
850 | do { | |
851 | status = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_status, NORMALIRQS); | |
852 | if ((status & RFD_COMPLETE) == 0) | |
853 | break; | |
854 | ||
855 | rbdaddr = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_rbdoffset, NORMALIRQS); | |
856 | ether1_readbuffer (dev, &rbd, rbdaddr, RBD_SIZE); | |
857 | ||
858 | if ((rbd.rbd_status & (RBD_EOF | RBD_ACNTVALID)) == (RBD_EOF | RBD_ACNTVALID)) { | |
859 | int length = rbd.rbd_status & RBD_ACNT; | |
860 | struct sk_buff *skb; | |
861 | ||
862 | length = (length + 1) & ~1; | |
c056b734 | 863 | skb = netdev_alloc_skb(dev, length + 2); |
1da177e4 LT |
864 | |
865 | if (skb) { | |
1da177e4 LT |
866 | skb_reserve (skb, 2); |
867 | ||
868 | ether1_readbuffer (dev, skb_put (skb, length), rbd.rbd_bufl, length); | |
869 | ||
870 | skb->protocol = eth_type_trans (skb, dev); | |
871 | netif_rx (skb); | |
25aec76a | 872 | dev->stats.rx_packets++; |
1da177e4 | 873 | } else |
25aec76a | 874 | dev->stats.rx_dropped++; |
1da177e4 LT |
875 | } else { |
876 | printk(KERN_WARNING "%s: %s\n", dev->name, | |
877 | (rbd.rbd_status & RBD_EOF) ? "oversized packet" : "acnt not valid"); | |
25aec76a | 878 | dev->stats.rx_dropped++; |
1da177e4 LT |
879 | } |
880 | ||
881 | nexttail = ether1_readw(dev, priv(dev)->rx_tail, rfd_t, rfd_link, NORMALIRQS); | |
882 | /* nexttail should be rx_head */ | |
883 | if (nexttail != priv(dev)->rx_head) | |
884 | printk(KERN_ERR "%s: receiver buffer chaining error (%04X != %04X)\n", | |
885 | dev->name, nexttail, priv(dev)->rx_head); | |
886 | ether1_writew(dev, RFD_CMDEL | RFD_CMDSUSPEND, nexttail, rfd_t, rfd_command, NORMALIRQS); | |
887 | ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_command, NORMALIRQS); | |
888 | ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_status, NORMALIRQS); | |
889 | ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_rbdoffset, NORMALIRQS); | |
890 | ||
891 | priv(dev)->rx_tail = nexttail; | |
892 | priv(dev)->rx_head = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_link, NORMALIRQS); | |
893 | } while (1); | |
894 | } | |
895 | ||
896 | static irqreturn_t | |
7d12e780 | 897 | ether1_interrupt (int irq, void *dev_id) |
1da177e4 LT |
898 | { |
899 | struct net_device *dev = (struct net_device *)dev_id; | |
900 | int status; | |
901 | ||
902 | status = ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS); | |
903 | ||
904 | if (status) { | |
905 | ether1_writew(dev, status & (SCB_STRNR | SCB_STCNA | SCB_STFR | SCB_STCX), | |
906 | SCB_ADDR, scb_t, scb_command, NORMALIRQS); | |
907 | writeb(CTRL_CA | CTRL_ACK, REG_CONTROL); | |
908 | if (status & SCB_STCX) { | |
909 | ether1_xmit_done (dev); | |
910 | } | |
911 | if (status & SCB_STCNA) { | |
912 | if (priv(dev)->resetting == 0) | |
913 | printk (KERN_WARNING "%s: CU went not ready ???\n", dev->name); | |
914 | else | |
915 | priv(dev)->resetting += 1; | |
916 | if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS) | |
917 | != (unsigned short)I82586_NULL) { | |
918 | ether1_writew(dev, SCB_CMDCUCSTART, SCB_ADDR, scb_t, scb_command, NORMALIRQS); | |
919 | writeb(CTRL_CA, REG_CONTROL); | |
920 | } | |
921 | if (priv(dev)->resetting == 2) | |
922 | priv(dev)->resetting = 0; | |
923 | } | |
924 | if (status & SCB_STFR) { | |
925 | ether1_recv_done (dev); | |
926 | } | |
927 | if (status & SCB_STRNR) { | |
928 | if (ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS) & SCB_STRXSUSP) { | |
929 | printk (KERN_WARNING "%s: RU went not ready: RU suspended\n", dev->name); | |
930 | ether1_writew(dev, SCB_CMDRXRESUME, SCB_ADDR, scb_t, scb_command, NORMALIRQS); | |
931 | writeb(CTRL_CA, REG_CONTROL); | |
25aec76a | 932 | dev->stats.rx_dropped++; /* we suspended due to lack of buffer space */ |
1da177e4 LT |
933 | } else |
934 | printk(KERN_WARNING "%s: RU went not ready: %04X\n", dev->name, | |
935 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS)); | |
936 | printk (KERN_WARNING "RU ptr = %04X\n", ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, | |
937 | NORMALIRQS)); | |
938 | } | |
939 | } else | |
940 | writeb(CTRL_ACK, REG_CONTROL); | |
941 | ||
942 | return IRQ_HANDLED; | |
943 | } | |
944 | ||
945 | static int | |
946 | ether1_close (struct net_device *dev) | |
947 | { | |
948 | ether1_reset (dev); | |
949 | ||
950 | free_irq(dev->irq, dev); | |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
1da177e4 LT |
955 | /* |
956 | * Set or clear the multicast filter for this adaptor. | |
957 | * num_addrs == -1 Promiscuous mode, receive all packets. | |
958 | * num_addrs == 0 Normal mode, clear multicast list. | |
959 | * num_addrs > 0 Multicast mode, receive normal and MC packets, and do | |
960 | * best-effort filtering. | |
961 | */ | |
962 | static void | |
963 | ether1_setmulticastlist (struct net_device *dev) | |
964 | { | |
965 | } | |
966 | ||
967 | /* ------------------------------------------------------------------------- */ | |
968 | ||
663c2a69 | 969 | static void ether1_banner(void) |
1da177e4 LT |
970 | { |
971 | static unsigned int version_printed = 0; | |
972 | ||
973 | if (net_debug && version_printed++ == 0) | |
974 | printk(KERN_INFO "%s", version); | |
975 | } | |
976 | ||
0b179e31 AB |
977 | static const struct net_device_ops ether1_netdev_ops = { |
978 | .ndo_open = ether1_open, | |
979 | .ndo_stop = ether1_close, | |
980 | .ndo_start_xmit = ether1_sendpacket, | |
afc4b13d | 981 | .ndo_set_rx_mode = ether1_setmulticastlist, |
0b179e31 AB |
982 | .ndo_tx_timeout = ether1_timeout, |
983 | .ndo_validate_addr = eth_validate_addr, | |
984 | .ndo_change_mtu = eth_change_mtu, | |
985 | .ndo_set_mac_address = eth_mac_addr, | |
986 | }; | |
987 | ||
663c2a69 | 988 | static int |
1da177e4 LT |
989 | ether1_probe(struct expansion_card *ec, const struct ecard_id *id) |
990 | { | |
991 | struct net_device *dev; | |
992 | int i, ret = 0; | |
993 | ||
994 | ether1_banner(); | |
995 | ||
996 | ret = ecard_request_resources(ec); | |
997 | if (ret) | |
998 | goto out; | |
999 | ||
1000 | dev = alloc_etherdev(sizeof(struct ether1_priv)); | |
1001 | if (!dev) { | |
1002 | ret = -ENOMEM; | |
1003 | goto release; | |
1004 | } | |
1005 | ||
1da177e4 LT |
1006 | SET_NETDEV_DEV(dev, &ec->dev); |
1007 | ||
1008 | dev->irq = ec->irq; | |
10bdaaa0 | 1009 | priv(dev)->base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); |
1da177e4 LT |
1010 | if (!priv(dev)->base) { |
1011 | ret = -ENOMEM; | |
1012 | goto free; | |
1013 | } | |
1014 | ||
1015 | if ((priv(dev)->bus_type = ether1_reset(dev)) == 0) { | |
1016 | ret = -ENODEV; | |
1017 | goto free; | |
1018 | } | |
1019 | ||
1020 | for (i = 0; i < 6; i++) | |
1021 | dev->dev_addr[i] = readb(IDPROM_ADDRESS + (i << 2)); | |
1022 | ||
1023 | if (ether1_init_2(dev)) { | |
1024 | ret = -ENODEV; | |
1025 | goto free; | |
1026 | } | |
1027 | ||
0b179e31 | 1028 | dev->netdev_ops = ðer1_netdev_ops; |
1da177e4 LT |
1029 | dev->watchdog_timeo = 5 * HZ / 100; |
1030 | ||
1031 | ret = register_netdev(dev); | |
1032 | if (ret) | |
1033 | goto free; | |
1034 | ||
e174961c JB |
1035 | printk(KERN_INFO "%s: ether1 in slot %d, %pM\n", |
1036 | dev->name, ec->slot_no, dev->dev_addr); | |
1da177e4 | 1037 | |
1da177e4 LT |
1038 | ecard_set_drvdata(ec, dev); |
1039 | return 0; | |
1040 | ||
1041 | free: | |
1da177e4 LT |
1042 | free_netdev(dev); |
1043 | release: | |
1044 | ecard_release_resources(ec); | |
1045 | out: | |
1046 | return ret; | |
1047 | } | |
1048 | ||
663c2a69 | 1049 | static void ether1_remove(struct expansion_card *ec) |
1da177e4 LT |
1050 | { |
1051 | struct net_device *dev = ecard_get_drvdata(ec); | |
1052 | ||
1053 | ecard_set_drvdata(ec, NULL); | |
1054 | ||
1055 | unregister_netdev(dev); | |
1da177e4 LT |
1056 | free_netdev(dev); |
1057 | ecard_release_resources(ec); | |
1058 | } | |
1059 | ||
1060 | static const struct ecard_id ether1_ids[] = { | |
1061 | { MANU_ACORN, PROD_ACORN_ETHER1 }, | |
1062 | { 0xffff, 0xffff } | |
1063 | }; | |
1064 | ||
1065 | static struct ecard_driver ether1_driver = { | |
1066 | .probe = ether1_probe, | |
663c2a69 | 1067 | .remove = ether1_remove, |
1da177e4 LT |
1068 | .id_table = ether1_ids, |
1069 | .drv = { | |
1070 | .name = "ether1", | |
1071 | }, | |
1072 | }; | |
1073 | ||
1074 | static int __init ether1_init(void) | |
1075 | { | |
1076 | return ecard_register_driver(ðer1_driver); | |
1077 | } | |
1078 | ||
1079 | static void __exit ether1_exit(void) | |
1080 | { | |
1081 | ecard_remove_driver(ðer1_driver); | |
1082 | } | |
1083 | ||
1084 | module_init(ether1_init); | |
1085 | module_exit(ether1_exit); | |
1086 | ||
1087 | MODULE_LICENSE("GPL"); |