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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* |
3 | * linux/drivers/acorn/net/ether1.c | |
4 | * | |
5 | * Copyright (C) 1996-2000 Russell King | |
6 | * | |
1da177e4 LT |
7 | * Acorn ether1 driver (82586 chip) for Acorn machines |
8 | * | |
9 | * We basically keep two queues in the cards memory - one for transmit | |
10 | * and one for receive. Each has a head and a tail. The head is where | |
11 | * we/the chip adds packets to be transmitted/received, and the tail | |
12 | * is where the transmitter has got to/where the receiver will stop. | |
13 | * Both of these queues are circular, and since the chip is running | |
14 | * all the time, we have to be careful when we modify the pointers etc | |
15 | * so that the buffer memory contents is valid all the time. | |
16 | * | |
17 | * Change log: | |
18 | * 1.00 RMK Released | |
19 | * 1.01 RMK 19/03/1996 Transfers the last odd byte onto/off of the card now. | |
20 | * 1.02 RMK 25/05/1997 Added code to restart RU if it goes not ready | |
21 | * 1.03 RMK 14/09/1997 Cleaned up the handling of a reset during the TX interrupt. | |
22 | * Should prevent lockup. | |
53b823b2 | 23 | * 1.04 RMK 17/09/1997 Added more info when initialisation of chip goes wrong. |
1da177e4 LT |
24 | * TDR now only reports failure when chip reports non-zero |
25 | * TDR time-distance. | |
26 | * 1.05 RMK 31/12/1997 Removed calls to dev_tint for 2.1 | |
27 | * 1.06 RMK 10/02/2000 Updated for 2.3.43 | |
28 | * 1.07 RMK 13/05/2000 Updated for 2.3.99-pre8 | |
29 | */ | |
30 | ||
31 | #include <linux/module.h> | |
32 | #include <linux/kernel.h> | |
1da177e4 LT |
33 | #include <linux/types.h> |
34 | #include <linux/fcntl.h> | |
35 | #include <linux/interrupt.h> | |
1da177e4 LT |
36 | #include <linux/ioport.h> |
37 | #include <linux/in.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/string.h> | |
40 | #include <linux/errno.h> | |
41 | #include <linux/device.h> | |
42 | #include <linux/init.h> | |
43 | #include <linux/netdevice.h> | |
44 | #include <linux/etherdevice.h> | |
45 | #include <linux/skbuff.h> | |
46 | #include <linux/bitops.h> | |
47 | ||
1da177e4 LT |
48 | #include <asm/io.h> |
49 | #include <asm/dma.h> | |
50 | #include <asm/ecard.h> | |
51 | ||
52 | #define __ETHER1_C | |
53 | #include "ether1.h" | |
54 | ||
55 | static unsigned int net_debug = NET_DEBUG; | |
56 | ||
57 | #define BUFFER_SIZE 0x10000 | |
58 | #define TX_AREA_START 0x00100 | |
59 | #define TX_AREA_END 0x05000 | |
60 | #define RX_AREA_START 0x05000 | |
61 | #define RX_AREA_END 0x0fc00 | |
62 | ||
63 | static int ether1_open(struct net_device *dev); | |
648c361a Y |
64 | static netdev_tx_t ether1_sendpacket(struct sk_buff *skb, |
65 | struct net_device *dev); | |
7d12e780 | 66 | static irqreturn_t ether1_interrupt(int irq, void *dev_id); |
1da177e4 | 67 | static int ether1_close(struct net_device *dev); |
1da177e4 | 68 | static void ether1_setmulticastlist(struct net_device *dev); |
0290bd29 | 69 | static void ether1_timeout(struct net_device *dev, unsigned int txqueue); |
1da177e4 LT |
70 | |
71 | /* ------------------------------------------------------------------------- */ | |
72 | ||
663c2a69 | 73 | static char version[] = "ether1 ethernet driver (c) 2000 Russell King v1.07\n"; |
1da177e4 LT |
74 | |
75 | #define BUS_16 16 | |
76 | #define BUS_8 8 | |
77 | ||
78 | /* ------------------------------------------------------------------------- */ | |
79 | ||
80 | #define DISABLEIRQS 1 | |
81 | #define NORMALIRQS 0 | |
82 | ||
83 | #define ether1_readw(dev, addr, type, offset, svflgs) ether1_inw_p (dev, addr + (int)(&((type *)0)->offset), svflgs) | |
84 | #define ether1_writew(dev, val, addr, type, offset, svflgs) ether1_outw_p (dev, val, addr + (int)(&((type *)0)->offset), svflgs) | |
85 | ||
86 | static inline unsigned short | |
87 | ether1_inw_p (struct net_device *dev, int addr, int svflgs) | |
88 | { | |
89 | unsigned long flags; | |
90 | unsigned short ret; | |
91 | ||
92 | if (svflgs) | |
93 | local_irq_save (flags); | |
94 | ||
95 | writeb(addr >> 12, REG_PAGE); | |
96 | ret = readw(ETHER1_RAM + ((addr & 4095) << 1)); | |
97 | if (svflgs) | |
98 | local_irq_restore (flags); | |
99 | return ret; | |
100 | } | |
101 | ||
102 | static inline void | |
103 | ether1_outw_p (struct net_device *dev, unsigned short val, int addr, int svflgs) | |
104 | { | |
105 | unsigned long flags; | |
106 | ||
107 | if (svflgs) | |
108 | local_irq_save (flags); | |
109 | ||
110 | writeb(addr >> 12, REG_PAGE); | |
111 | writew(val, ETHER1_RAM + ((addr & 4095) << 1)); | |
112 | if (svflgs) | |
113 | local_irq_restore (flags); | |
114 | } | |
115 | ||
116 | /* | |
117 | * Some inline assembler to allow fast transfers on to/off of the card. | |
118 | * Since this driver depends on some features presented by the ARM | |
119 | * specific architecture, and that you can't configure this driver | |
53b823b2 | 120 | * without specifying ARM mode, this is not a problem. |
1da177e4 LT |
121 | * |
122 | * This routine is essentially an optimised memcpy from the card's | |
123 | * onboard RAM to kernel memory. | |
124 | */ | |
125 | static void | |
126 | ether1_writebuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length) | |
127 | { | |
128 | unsigned int page, thislen, offset; | |
129 | void __iomem *addr; | |
130 | ||
131 | offset = start & 4095; | |
132 | page = start >> 12; | |
133 | addr = ETHER1_RAM + (offset << 1); | |
134 | ||
135 | if (offset + length > 4096) | |
136 | thislen = 4096 - offset; | |
137 | else | |
138 | thislen = length; | |
139 | ||
140 | do { | |
141 | int used; | |
142 | ||
143 | writeb(page, REG_PAGE); | |
144 | length -= thislen; | |
145 | ||
146 | __asm__ __volatile__( | |
147 | "subs %3, %3, #2\n\ | |
148 | bmi 2f\n\ | |
149 | 1: ldr %0, [%1], #2\n\ | |
150 | mov %0, %0, lsl #16\n\ | |
151 | orr %0, %0, %0, lsr #16\n\ | |
152 | str %0, [%2], #4\n\ | |
153 | subs %3, %3, #2\n\ | |
154 | bmi 2f\n\ | |
155 | ldr %0, [%1], #2\n\ | |
156 | mov %0, %0, lsl #16\n\ | |
157 | orr %0, %0, %0, lsr #16\n\ | |
158 | str %0, [%2], #4\n\ | |
159 | subs %3, %3, #2\n\ | |
160 | bmi 2f\n\ | |
161 | ldr %0, [%1], #2\n\ | |
162 | mov %0, %0, lsl #16\n\ | |
163 | orr %0, %0, %0, lsr #16\n\ | |
164 | str %0, [%2], #4\n\ | |
165 | subs %3, %3, #2\n\ | |
166 | bmi 2f\n\ | |
167 | ldr %0, [%1], #2\n\ | |
168 | mov %0, %0, lsl #16\n\ | |
169 | orr %0, %0, %0, lsr #16\n\ | |
170 | str %0, [%2], #4\n\ | |
171 | subs %3, %3, #2\n\ | |
172 | bpl 1b\n\ | |
173 | 2: adds %3, %3, #1\n\ | |
174 | ldreqb %0, [%1]\n\ | |
175 | streqb %0, [%2]" | |
176 | : "=&r" (used), "=&r" (data) | |
177 | : "r" (addr), "r" (thislen), "1" (data)); | |
178 | ||
179 | addr = ETHER1_RAM; | |
180 | ||
181 | thislen = length; | |
182 | if (thislen > 4096) | |
183 | thislen = 4096; | |
184 | page++; | |
185 | } while (thislen); | |
186 | } | |
187 | ||
188 | static void | |
189 | ether1_readbuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length) | |
190 | { | |
191 | unsigned int page, thislen, offset; | |
192 | void __iomem *addr; | |
193 | ||
194 | offset = start & 4095; | |
195 | page = start >> 12; | |
196 | addr = ETHER1_RAM + (offset << 1); | |
197 | ||
198 | if (offset + length > 4096) | |
199 | thislen = 4096 - offset; | |
200 | else | |
201 | thislen = length; | |
202 | ||
203 | do { | |
204 | int used; | |
205 | ||
206 | writeb(page, REG_PAGE); | |
207 | length -= thislen; | |
208 | ||
209 | __asm__ __volatile__( | |
210 | "subs %3, %3, #2\n\ | |
211 | bmi 2f\n\ | |
212 | 1: ldr %0, [%2], #4\n\ | |
213 | strb %0, [%1], #1\n\ | |
214 | mov %0, %0, lsr #8\n\ | |
215 | strb %0, [%1], #1\n\ | |
216 | subs %3, %3, #2\n\ | |
217 | bmi 2f\n\ | |
218 | ldr %0, [%2], #4\n\ | |
219 | strb %0, [%1], #1\n\ | |
220 | mov %0, %0, lsr #8\n\ | |
221 | strb %0, [%1], #1\n\ | |
222 | subs %3, %3, #2\n\ | |
223 | bmi 2f\n\ | |
224 | ldr %0, [%2], #4\n\ | |
225 | strb %0, [%1], #1\n\ | |
226 | mov %0, %0, lsr #8\n\ | |
227 | strb %0, [%1], #1\n\ | |
228 | subs %3, %3, #2\n\ | |
229 | bmi 2f\n\ | |
230 | ldr %0, [%2], #4\n\ | |
231 | strb %0, [%1], #1\n\ | |
232 | mov %0, %0, lsr #8\n\ | |
233 | strb %0, [%1], #1\n\ | |
234 | subs %3, %3, #2\n\ | |
235 | bpl 1b\n\ | |
236 | 2: adds %3, %3, #1\n\ | |
237 | ldreqb %0, [%2]\n\ | |
238 | streqb %0, [%1]" | |
239 | : "=&r" (used), "=&r" (data) | |
240 | : "r" (addr), "r" (thislen), "1" (data)); | |
241 | ||
242 | addr = ETHER1_RAM; | |
243 | ||
244 | thislen = length; | |
245 | if (thislen > 4096) | |
246 | thislen = 4096; | |
247 | page++; | |
248 | } while (thislen); | |
249 | } | |
250 | ||
663c2a69 | 251 | static int |
1da177e4 LT |
252 | ether1_ramtest(struct net_device *dev, unsigned char byte) |
253 | { | |
254 | unsigned char *buffer = kmalloc (BUFFER_SIZE, GFP_KERNEL); | |
255 | int i, ret = BUFFER_SIZE; | |
256 | int max_errors = 15; | |
257 | int bad = -1; | |
258 | int bad_start = 0; | |
259 | ||
260 | if (!buffer) | |
261 | return 1; | |
262 | ||
263 | memset (buffer, byte, BUFFER_SIZE); | |
264 | ether1_writebuffer (dev, buffer, 0, BUFFER_SIZE); | |
265 | memset (buffer, byte ^ 0xff, BUFFER_SIZE); | |
266 | ether1_readbuffer (dev, buffer, 0, BUFFER_SIZE); | |
267 | ||
268 | for (i = 0; i < BUFFER_SIZE; i++) { | |
269 | if (buffer[i] != byte) { | |
270 | if (max_errors >= 0 && bad != buffer[i]) { | |
271 | if (bad != -1) | |
272 | printk ("\n"); | |
273 | printk (KERN_CRIT "%s: RAM failed with (%02X instead of %02X) at 0x%04X", | |
274 | dev->name, buffer[i], byte, i); | |
275 | ret = -ENODEV; | |
276 | max_errors --; | |
277 | bad = buffer[i]; | |
278 | bad_start = i; | |
279 | } | |
280 | } else { | |
281 | if (bad != -1) { | |
282 | if (bad_start == i - 1) | |
283 | printk ("\n"); | |
284 | else | |
285 | printk (" - 0x%04X\n", i - 1); | |
286 | bad = -1; | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | if (bad != -1) | |
292 | printk (" - 0x%04X\n", BUFFER_SIZE); | |
293 | kfree (buffer); | |
294 | ||
295 | return ret; | |
296 | } | |
297 | ||
298 | static int | |
299 | ether1_reset (struct net_device *dev) | |
300 | { | |
301 | writeb(CTRL_RST|CTRL_ACK, REG_CONTROL); | |
302 | return BUS_16; | |
303 | } | |
304 | ||
663c2a69 | 305 | static int |
1da177e4 LT |
306 | ether1_init_2(struct net_device *dev) |
307 | { | |
308 | int i; | |
309 | dev->mem_start = 0; | |
310 | ||
311 | i = ether1_ramtest (dev, 0x5a); | |
312 | ||
313 | if (i > 0) | |
314 | i = ether1_ramtest (dev, 0x1e); | |
315 | ||
316 | if (i <= 0) | |
317 | return -ENODEV; | |
318 | ||
319 | dev->mem_end = i; | |
320 | return 0; | |
321 | } | |
322 | ||
323 | /* | |
324 | * These are the structures that are loaded into the ether RAM card to | |
325 | * initialise the 82586 | |
326 | */ | |
327 | ||
328 | /* at 0x0100 */ | |
329 | #define NOP_ADDR (TX_AREA_START) | |
330 | #define NOP_SIZE (0x06) | |
331 | static nop_t init_nop = { | |
332 | 0, | |
333 | CMD_NOP, | |
334 | NOP_ADDR | |
335 | }; | |
336 | ||
337 | /* at 0x003a */ | |
338 | #define TDR_ADDR (0x003a) | |
339 | #define TDR_SIZE (0x08) | |
340 | static tdr_t init_tdr = { | |
341 | 0, | |
342 | CMD_TDR | CMD_INTR, | |
343 | NOP_ADDR, | |
344 | 0 | |
345 | }; | |
346 | ||
347 | /* at 0x002e */ | |
348 | #define MC_ADDR (0x002e) | |
349 | #define MC_SIZE (0x0c) | |
350 | static mc_t init_mc = { | |
351 | 0, | |
352 | CMD_SETMULTICAST, | |
353 | TDR_ADDR, | |
354 | 0, | |
355 | { { 0, } } | |
356 | }; | |
357 | ||
358 | /* at 0x0022 */ | |
359 | #define SA_ADDR (0x0022) | |
360 | #define SA_SIZE (0x0c) | |
361 | static sa_t init_sa = { | |
362 | 0, | |
363 | CMD_SETADDRESS, | |
364 | MC_ADDR, | |
365 | { 0, } | |
366 | }; | |
367 | ||
368 | /* at 0x0010 */ | |
369 | #define CFG_ADDR (0x0010) | |
370 | #define CFG_SIZE (0x12) | |
371 | static cfg_t init_cfg = { | |
372 | 0, | |
373 | CMD_CONFIG, | |
374 | SA_ADDR, | |
375 | 8, | |
376 | 8, | |
377 | CFG8_SRDY, | |
378 | CFG9_PREAMB8 | CFG9_ADDRLENBUF | CFG9_ADDRLEN(6), | |
379 | 0, | |
380 | 0x60, | |
381 | 0, | |
382 | CFG13_RETRY(15) | CFG13_SLOTH(2), | |
383 | 0, | |
384 | }; | |
385 | ||
386 | /* at 0x0000 */ | |
387 | #define SCB_ADDR (0x0000) | |
388 | #define SCB_SIZE (0x10) | |
389 | static scb_t init_scb = { | |
390 | 0, | |
391 | SCB_CMDACKRNR | SCB_CMDACKCNA | SCB_CMDACKFR | SCB_CMDACKCX, | |
392 | CFG_ADDR, | |
393 | RX_AREA_START, | |
394 | 0, | |
395 | 0, | |
396 | 0, | |
397 | 0 | |
398 | }; | |
399 | ||
400 | /* at 0xffee */ | |
401 | #define ISCP_ADDR (0xffee) | |
402 | #define ISCP_SIZE (0x08) | |
403 | static iscp_t init_iscp = { | |
404 | 1, | |
405 | SCB_ADDR, | |
406 | 0x0000, | |
407 | 0x0000 | |
408 | }; | |
409 | ||
410 | /* at 0xfff6 */ | |
411 | #define SCP_ADDR (0xfff6) | |
412 | #define SCP_SIZE (0x0a) | |
413 | static scp_t init_scp = { | |
414 | SCP_SY_16BBUS, | |
415 | { 0, 0 }, | |
416 | ISCP_ADDR, | |
417 | 0 | |
418 | }; | |
419 | ||
420 | #define RFD_SIZE (0x16) | |
421 | static rfd_t init_rfd = { | |
422 | 0, | |
423 | 0, | |
424 | 0, | |
425 | 0, | |
426 | { 0, }, | |
427 | { 0, }, | |
428 | 0 | |
429 | }; | |
430 | ||
431 | #define RBD_SIZE (0x0a) | |
432 | static rbd_t init_rbd = { | |
433 | 0, | |
434 | 0, | |
435 | 0, | |
436 | 0, | |
437 | ETH_FRAME_LEN + 8 | |
438 | }; | |
439 | ||
440 | #define TX_SIZE (0x08) | |
441 | #define TBD_SIZE (0x08) | |
442 | ||
443 | static int | |
444 | ether1_init_for_open (struct net_device *dev) | |
445 | { | |
446 | int i, status, addr, next, next2; | |
447 | int failures = 0; | |
448 | unsigned long timeout; | |
449 | ||
450 | writeb(CTRL_RST|CTRL_ACK, REG_CONTROL); | |
451 | ||
452 | for (i = 0; i < 6; i++) | |
453 | init_sa.sa_addr[i] = dev->dev_addr[i]; | |
454 | ||
455 | /* load data structures into ether1 RAM */ | |
456 | ether1_writebuffer (dev, &init_scp, SCP_ADDR, SCP_SIZE); | |
457 | ether1_writebuffer (dev, &init_iscp, ISCP_ADDR, ISCP_SIZE); | |
458 | ether1_writebuffer (dev, &init_scb, SCB_ADDR, SCB_SIZE); | |
459 | ether1_writebuffer (dev, &init_cfg, CFG_ADDR, CFG_SIZE); | |
460 | ether1_writebuffer (dev, &init_sa, SA_ADDR, SA_SIZE); | |
461 | ether1_writebuffer (dev, &init_mc, MC_ADDR, MC_SIZE); | |
462 | ether1_writebuffer (dev, &init_tdr, TDR_ADDR, TDR_SIZE); | |
463 | ether1_writebuffer (dev, &init_nop, NOP_ADDR, NOP_SIZE); | |
464 | ||
465 | if (ether1_readw(dev, CFG_ADDR, cfg_t, cfg_command, NORMALIRQS) != CMD_CONFIG) { | |
466 | printk (KERN_ERR "%s: detected either RAM fault or compiler bug\n", | |
467 | dev->name); | |
468 | return 1; | |
469 | } | |
470 | ||
471 | /* | |
472 | * setup circularly linked list of { rfd, rbd, buffer }, with | |
473 | * all rfds circularly linked, rbds circularly linked. | |
474 | * First rfd is linked to scp, first rbd is linked to first | |
475 | * rfd. Last rbd has a suspend command. | |
476 | */ | |
477 | addr = RX_AREA_START; | |
478 | do { | |
479 | next = addr + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10; | |
480 | next2 = next + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10; | |
481 | ||
482 | if (next2 >= RX_AREA_END) { | |
483 | next = RX_AREA_START; | |
484 | init_rfd.rfd_command = RFD_CMDEL | RFD_CMDSUSPEND; | |
485 | priv(dev)->rx_tail = addr; | |
486 | } else | |
487 | init_rfd.rfd_command = 0; | |
488 | if (addr == RX_AREA_START) | |
489 | init_rfd.rfd_rbdoffset = addr + RFD_SIZE; | |
490 | else | |
491 | init_rfd.rfd_rbdoffset = 0; | |
492 | init_rfd.rfd_link = next; | |
493 | init_rbd.rbd_link = next + RFD_SIZE; | |
494 | init_rbd.rbd_bufl = addr + RFD_SIZE + RBD_SIZE; | |
495 | ||
496 | ether1_writebuffer (dev, &init_rfd, addr, RFD_SIZE); | |
497 | ether1_writebuffer (dev, &init_rbd, addr + RFD_SIZE, RBD_SIZE); | |
498 | addr = next; | |
499 | } while (next2 < RX_AREA_END); | |
500 | ||
501 | priv(dev)->tx_link = NOP_ADDR; | |
502 | priv(dev)->tx_head = NOP_ADDR + NOP_SIZE; | |
503 | priv(dev)->tx_tail = TDR_ADDR; | |
504 | priv(dev)->rx_head = RX_AREA_START; | |
505 | ||
506 | /* release reset & give 586 a prod */ | |
507 | priv(dev)->resetting = 1; | |
508 | priv(dev)->initialising = 1; | |
509 | writeb(CTRL_RST, REG_CONTROL); | |
510 | writeb(0, REG_CONTROL); | |
511 | writeb(CTRL_CA, REG_CONTROL); | |
512 | ||
513 | /* 586 should now unset iscp.busy */ | |
514 | timeout = jiffies + HZ/2; | |
515 | while (ether1_readw(dev, ISCP_ADDR, iscp_t, iscp_busy, DISABLEIRQS) == 1) { | |
516 | if (time_after(jiffies, timeout)) { | |
517 | printk (KERN_WARNING "%s: can't initialise 82586: iscp is busy\n", dev->name); | |
518 | return 1; | |
519 | } | |
520 | } | |
521 | ||
522 | /* check status of commands that we issued */ | |
523 | timeout += HZ/10; | |
524 | while (((status = ether1_readw(dev, CFG_ADDR, cfg_t, cfg_status, DISABLEIRQS)) | |
525 | & STAT_COMPLETE) == 0) { | |
526 | if (time_after(jiffies, timeout)) | |
527 | break; | |
528 | } | |
529 | ||
530 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
531 | printk (KERN_WARNING "%s: can't initialise 82586: config status %04X\n", dev->name, status); | |
532 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
533 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
534 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
535 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
536 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
537 | failures += 1; | |
538 | } | |
539 | ||
540 | timeout += HZ/10; | |
541 | while (((status = ether1_readw(dev, SA_ADDR, sa_t, sa_status, DISABLEIRQS)) | |
542 | & STAT_COMPLETE) == 0) { | |
543 | if (time_after(jiffies, timeout)) | |
544 | break; | |
545 | } | |
546 | ||
547 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
548 | printk (KERN_WARNING "%s: can't initialise 82586: set address status %04X\n", dev->name, status); | |
549 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
550 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
551 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
552 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
553 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
554 | failures += 1; | |
555 | } | |
556 | ||
557 | timeout += HZ/10; | |
558 | while (((status = ether1_readw(dev, MC_ADDR, mc_t, mc_status, DISABLEIRQS)) | |
559 | & STAT_COMPLETE) == 0) { | |
560 | if (time_after(jiffies, timeout)) | |
561 | break; | |
562 | } | |
563 | ||
564 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
565 | printk (KERN_WARNING "%s: can't initialise 82586: set multicast status %04X\n", dev->name, status); | |
566 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
567 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
568 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
569 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
570 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
571 | failures += 1; | |
572 | } | |
573 | ||
574 | timeout += HZ; | |
575 | while (((status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_status, DISABLEIRQS)) | |
576 | & STAT_COMPLETE) == 0) { | |
577 | if (time_after(jiffies, timeout)) | |
578 | break; | |
579 | } | |
580 | ||
581 | if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) { | |
582 | printk (KERN_WARNING "%s: can't tdr (ignored)\n", dev->name); | |
583 | printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name, | |
584 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS), | |
585 | ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS), | |
586 | ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS), | |
587 | ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS)); | |
588 | } else { | |
589 | status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_result, DISABLEIRQS); | |
590 | if (status & TDR_XCVRPROB) | |
591 | printk (KERN_WARNING "%s: i/f failed tdr: transceiver problem\n", dev->name); | |
592 | else if ((status & (TDR_SHORT|TDR_OPEN)) && (status & TDR_TIME)) { | |
593 | #ifdef FANCY | |
594 | printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d.%d us away\n", dev->name, | |
595 | status & TDR_SHORT ? "short" : "open", (status & TDR_TIME) / 10, | |
596 | (status & TDR_TIME) % 10); | |
597 | #else | |
598 | printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d clks away\n", dev->name, | |
599 | status & TDR_SHORT ? "short" : "open", (status & TDR_TIME)); | |
600 | #endif | |
601 | } | |
602 | } | |
603 | ||
604 | if (failures) | |
605 | ether1_reset (dev); | |
606 | return failures ? 1 : 0; | |
607 | } | |
608 | ||
609 | /* ------------------------------------------------------------------------- */ | |
610 | ||
611 | static int | |
612 | ether1_txalloc (struct net_device *dev, int size) | |
613 | { | |
614 | int start, tail; | |
615 | ||
616 | size = (size + 1) & ~1; | |
617 | tail = priv(dev)->tx_tail; | |
618 | ||
619 | if (priv(dev)->tx_head + size > TX_AREA_END) { | |
620 | if (tail > priv(dev)->tx_head) | |
621 | return -1; | |
622 | start = TX_AREA_START; | |
623 | if (start + size > tail) | |
624 | return -1; | |
625 | priv(dev)->tx_head = start + size; | |
626 | } else { | |
627 | if (priv(dev)->tx_head < tail && (priv(dev)->tx_head + size) > tail) | |
628 | return -1; | |
629 | start = priv(dev)->tx_head; | |
630 | priv(dev)->tx_head += size; | |
631 | } | |
632 | ||
633 | return start; | |
634 | } | |
635 | ||
636 | static int | |
637 | ether1_open (struct net_device *dev) | |
638 | { | |
1da177e4 LT |
639 | if (request_irq(dev->irq, ether1_interrupt, 0, "ether1", dev)) |
640 | return -EAGAIN; | |
641 | ||
1da177e4 LT |
642 | if (ether1_init_for_open (dev)) { |
643 | free_irq (dev->irq, dev); | |
644 | return -EAGAIN; | |
645 | } | |
646 | ||
647 | netif_start_queue(dev); | |
648 | ||
649 | return 0; | |
650 | } | |
651 | ||
652 | static void | |
0290bd29 | 653 | ether1_timeout(struct net_device *dev, unsigned int txqueue) |
1da177e4 LT |
654 | { |
655 | printk(KERN_WARNING "%s: transmit timeout, network cable problem?\n", | |
656 | dev->name); | |
657 | printk(KERN_WARNING "%s: resetting device\n", dev->name); | |
658 | ||
659 | ether1_reset (dev); | |
660 | ||
661 | if (ether1_init_for_open (dev)) | |
662 | printk (KERN_ERR "%s: unable to restart interface\n", dev->name); | |
663 | ||
25aec76a | 664 | dev->stats.tx_errors++; |
1da177e4 LT |
665 | netif_wake_queue(dev); |
666 | } | |
667 | ||
648c361a | 668 | static netdev_tx_t |
1da177e4 LT |
669 | ether1_sendpacket (struct sk_buff *skb, struct net_device *dev) |
670 | { | |
671 | int tmp, tst, nopaddr, txaddr, tbdaddr, dataddr; | |
672 | unsigned long flags; | |
673 | tx_t tx; | |
674 | tbd_t tbd; | |
675 | nop_t nop; | |
676 | ||
677 | if (priv(dev)->restart) { | |
678 | printk(KERN_WARNING "%s: resetting device\n", dev->name); | |
679 | ||
680 | ether1_reset(dev); | |
681 | ||
682 | if (ether1_init_for_open(dev)) | |
683 | printk(KERN_ERR "%s: unable to restart interface\n", dev->name); | |
684 | else | |
685 | priv(dev)->restart = 0; | |
686 | } | |
687 | ||
688 | if (skb->len < ETH_ZLEN) { | |
5b057c6b | 689 | if (skb_padto(skb, ETH_ZLEN)) |
1da177e4 LT |
690 | goto out; |
691 | } | |
692 | ||
693 | /* | |
694 | * insert packet followed by a nop | |
695 | */ | |
696 | txaddr = ether1_txalloc (dev, TX_SIZE); | |
697 | tbdaddr = ether1_txalloc (dev, TBD_SIZE); | |
698 | dataddr = ether1_txalloc (dev, skb->len); | |
699 | nopaddr = ether1_txalloc (dev, NOP_SIZE); | |
700 | ||
701 | tx.tx_status = 0; | |
702 | tx.tx_command = CMD_TX | CMD_INTR; | |
703 | tx.tx_link = nopaddr; | |
704 | tx.tx_tbdoffset = tbdaddr; | |
705 | tbd.tbd_opts = TBD_EOL | skb->len; | |
706 | tbd.tbd_link = I82586_NULL; | |
707 | tbd.tbd_bufl = dataddr; | |
708 | tbd.tbd_bufh = 0; | |
709 | nop.nop_status = 0; | |
710 | nop.nop_command = CMD_NOP; | |
711 | nop.nop_link = nopaddr; | |
712 | ||
713 | local_irq_save(flags); | |
714 | ether1_writebuffer (dev, &tx, txaddr, TX_SIZE); | |
715 | ether1_writebuffer (dev, &tbd, tbdaddr, TBD_SIZE); | |
716 | ether1_writebuffer (dev, skb->data, dataddr, skb->len); | |
717 | ether1_writebuffer (dev, &nop, nopaddr, NOP_SIZE); | |
718 | tmp = priv(dev)->tx_link; | |
719 | priv(dev)->tx_link = nopaddr; | |
720 | ||
721 | /* now reset the previous nop pointer */ | |
722 | ether1_writew(dev, txaddr, tmp, nop_t, nop_link, NORMALIRQS); | |
723 | ||
724 | local_irq_restore(flags); | |
725 | ||
726 | /* handle transmit */ | |
1da177e4 LT |
727 | |
728 | /* check to see if we have room for a full sized ether frame */ | |
729 | tmp = priv(dev)->tx_head; | |
730 | tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN); | |
731 | priv(dev)->tx_head = tmp; | |
732 | dev_kfree_skb (skb); | |
733 | ||
734 | if (tst == -1) | |
735 | netif_stop_queue(dev); | |
736 | ||
737 | out: | |
6ed10654 | 738 | return NETDEV_TX_OK; |
1da177e4 LT |
739 | } |
740 | ||
741 | static void | |
742 | ether1_xmit_done (struct net_device *dev) | |
743 | { | |
744 | nop_t nop; | |
745 | int caddr, tst; | |
746 | ||
747 | caddr = priv(dev)->tx_tail; | |
748 | ||
749 | again: | |
750 | ether1_readbuffer (dev, &nop, caddr, NOP_SIZE); | |
751 | ||
752 | switch (nop.nop_command & CMD_MASK) { | |
753 | case CMD_TDR: | |
754 | /* special case */ | |
755 | if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS) | |
756 | != (unsigned short)I82586_NULL) { | |
757 | ether1_writew(dev, SCB_CMDCUCSTART | SCB_CMDRXSTART, SCB_ADDR, scb_t, | |
758 | scb_command, NORMALIRQS); | |
759 | writeb(CTRL_CA, REG_CONTROL); | |
760 | } | |
761 | priv(dev)->tx_tail = NOP_ADDR; | |
762 | return; | |
763 | ||
764 | case CMD_NOP: | |
765 | if (nop.nop_link == caddr) { | |
766 | if (priv(dev)->initialising == 0) | |
767 | printk (KERN_WARNING "%s: strange command complete with no tx command!\n", dev->name); | |
768 | else | |
769 | priv(dev)->initialising = 0; | |
770 | return; | |
771 | } | |
772 | if (caddr == nop.nop_link) | |
773 | return; | |
774 | caddr = nop.nop_link; | |
775 | goto again; | |
776 | ||
777 | case CMD_TX: | |
778 | if (nop.nop_status & STAT_COMPLETE) | |
779 | break; | |
780 | printk (KERN_ERR "%s: strange command complete without completed command\n", dev->name); | |
781 | priv(dev)->restart = 1; | |
782 | return; | |
783 | ||
784 | default: | |
785 | printk (KERN_WARNING "%s: strange command %d complete! (offset %04X)", dev->name, | |
786 | nop.nop_command & CMD_MASK, caddr); | |
787 | priv(dev)->restart = 1; | |
788 | return; | |
789 | } | |
790 | ||
791 | while (nop.nop_status & STAT_COMPLETE) { | |
792 | if (nop.nop_status & STAT_OK) { | |
25aec76a TK |
793 | dev->stats.tx_packets++; |
794 | dev->stats.collisions += (nop.nop_status & STAT_COLLISIONS); | |
1da177e4 | 795 | } else { |
25aec76a | 796 | dev->stats.tx_errors++; |
1da177e4 LT |
797 | |
798 | if (nop.nop_status & STAT_COLLAFTERTX) | |
25aec76a | 799 | dev->stats.collisions++; |
1da177e4 | 800 | if (nop.nop_status & STAT_NOCARRIER) |
25aec76a | 801 | dev->stats.tx_carrier_errors++; |
1da177e4 LT |
802 | if (nop.nop_status & STAT_TXLOSTCTS) |
803 | printk (KERN_WARNING "%s: cts lost\n", dev->name); | |
804 | if (nop.nop_status & STAT_TXSLOWDMA) | |
25aec76a | 805 | dev->stats.tx_fifo_errors++; |
1da177e4 | 806 | if (nop.nop_status & STAT_COLLEXCESSIVE) |
25aec76a | 807 | dev->stats.collisions += 16; |
1da177e4 LT |
808 | } |
809 | ||
810 | if (nop.nop_link == caddr) { | |
811 | printk (KERN_ERR "%s: tx buffer chaining error: tx command points to itself\n", dev->name); | |
812 | break; | |
813 | } | |
814 | ||
815 | caddr = nop.nop_link; | |
816 | ether1_readbuffer (dev, &nop, caddr, NOP_SIZE); | |
817 | if ((nop.nop_command & CMD_MASK) != CMD_NOP) { | |
818 | printk (KERN_ERR "%s: tx buffer chaining error: no nop after tx command\n", dev->name); | |
819 | break; | |
820 | } | |
821 | ||
822 | if (caddr == nop.nop_link) | |
823 | break; | |
824 | ||
825 | caddr = nop.nop_link; | |
826 | ether1_readbuffer (dev, &nop, caddr, NOP_SIZE); | |
827 | if ((nop.nop_command & CMD_MASK) != CMD_TX) { | |
828 | printk (KERN_ERR "%s: tx buffer chaining error: no tx command after nop\n", dev->name); | |
829 | break; | |
830 | } | |
831 | } | |
832 | priv(dev)->tx_tail = caddr; | |
833 | ||
834 | caddr = priv(dev)->tx_head; | |
835 | tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN); | |
836 | priv(dev)->tx_head = caddr; | |
837 | if (tst != -1) | |
838 | netif_wake_queue(dev); | |
839 | } | |
840 | ||
841 | static void | |
842 | ether1_recv_done (struct net_device *dev) | |
843 | { | |
844 | int status; | |
845 | int nexttail, rbdaddr; | |
846 | rbd_t rbd; | |
847 | ||
848 | do { | |
849 | status = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_status, NORMALIRQS); | |
850 | if ((status & RFD_COMPLETE) == 0) | |
851 | break; | |
852 | ||
853 | rbdaddr = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_rbdoffset, NORMALIRQS); | |
854 | ether1_readbuffer (dev, &rbd, rbdaddr, RBD_SIZE); | |
855 | ||
856 | if ((rbd.rbd_status & (RBD_EOF | RBD_ACNTVALID)) == (RBD_EOF | RBD_ACNTVALID)) { | |
857 | int length = rbd.rbd_status & RBD_ACNT; | |
858 | struct sk_buff *skb; | |
859 | ||
860 | length = (length + 1) & ~1; | |
c056b734 | 861 | skb = netdev_alloc_skb(dev, length + 2); |
1da177e4 LT |
862 | |
863 | if (skb) { | |
1da177e4 LT |
864 | skb_reserve (skb, 2); |
865 | ||
866 | ether1_readbuffer (dev, skb_put (skb, length), rbd.rbd_bufl, length); | |
867 | ||
868 | skb->protocol = eth_type_trans (skb, dev); | |
869 | netif_rx (skb); | |
25aec76a | 870 | dev->stats.rx_packets++; |
1da177e4 | 871 | } else |
25aec76a | 872 | dev->stats.rx_dropped++; |
1da177e4 LT |
873 | } else { |
874 | printk(KERN_WARNING "%s: %s\n", dev->name, | |
875 | (rbd.rbd_status & RBD_EOF) ? "oversized packet" : "acnt not valid"); | |
25aec76a | 876 | dev->stats.rx_dropped++; |
1da177e4 LT |
877 | } |
878 | ||
879 | nexttail = ether1_readw(dev, priv(dev)->rx_tail, rfd_t, rfd_link, NORMALIRQS); | |
880 | /* nexttail should be rx_head */ | |
881 | if (nexttail != priv(dev)->rx_head) | |
882 | printk(KERN_ERR "%s: receiver buffer chaining error (%04X != %04X)\n", | |
883 | dev->name, nexttail, priv(dev)->rx_head); | |
884 | ether1_writew(dev, RFD_CMDEL | RFD_CMDSUSPEND, nexttail, rfd_t, rfd_command, NORMALIRQS); | |
885 | ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_command, NORMALIRQS); | |
886 | ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_status, NORMALIRQS); | |
887 | ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_rbdoffset, NORMALIRQS); | |
888 | ||
889 | priv(dev)->rx_tail = nexttail; | |
890 | priv(dev)->rx_head = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_link, NORMALIRQS); | |
891 | } while (1); | |
892 | } | |
893 | ||
894 | static irqreturn_t | |
7d12e780 | 895 | ether1_interrupt (int irq, void *dev_id) |
1da177e4 LT |
896 | { |
897 | struct net_device *dev = (struct net_device *)dev_id; | |
898 | int status; | |
899 | ||
900 | status = ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS); | |
901 | ||
902 | if (status) { | |
903 | ether1_writew(dev, status & (SCB_STRNR | SCB_STCNA | SCB_STFR | SCB_STCX), | |
904 | SCB_ADDR, scb_t, scb_command, NORMALIRQS); | |
905 | writeb(CTRL_CA | CTRL_ACK, REG_CONTROL); | |
906 | if (status & SCB_STCX) { | |
907 | ether1_xmit_done (dev); | |
908 | } | |
909 | if (status & SCB_STCNA) { | |
910 | if (priv(dev)->resetting == 0) | |
911 | printk (KERN_WARNING "%s: CU went not ready ???\n", dev->name); | |
912 | else | |
913 | priv(dev)->resetting += 1; | |
914 | if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS) | |
915 | != (unsigned short)I82586_NULL) { | |
916 | ether1_writew(dev, SCB_CMDCUCSTART, SCB_ADDR, scb_t, scb_command, NORMALIRQS); | |
917 | writeb(CTRL_CA, REG_CONTROL); | |
918 | } | |
919 | if (priv(dev)->resetting == 2) | |
920 | priv(dev)->resetting = 0; | |
921 | } | |
922 | if (status & SCB_STFR) { | |
923 | ether1_recv_done (dev); | |
924 | } | |
925 | if (status & SCB_STRNR) { | |
926 | if (ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS) & SCB_STRXSUSP) { | |
927 | printk (KERN_WARNING "%s: RU went not ready: RU suspended\n", dev->name); | |
928 | ether1_writew(dev, SCB_CMDRXRESUME, SCB_ADDR, scb_t, scb_command, NORMALIRQS); | |
929 | writeb(CTRL_CA, REG_CONTROL); | |
25aec76a | 930 | dev->stats.rx_dropped++; /* we suspended due to lack of buffer space */ |
1da177e4 LT |
931 | } else |
932 | printk(KERN_WARNING "%s: RU went not ready: %04X\n", dev->name, | |
933 | ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS)); | |
934 | printk (KERN_WARNING "RU ptr = %04X\n", ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, | |
935 | NORMALIRQS)); | |
936 | } | |
937 | } else | |
938 | writeb(CTRL_ACK, REG_CONTROL); | |
939 | ||
940 | return IRQ_HANDLED; | |
941 | } | |
942 | ||
943 | static int | |
944 | ether1_close (struct net_device *dev) | |
945 | { | |
946 | ether1_reset (dev); | |
947 | ||
948 | free_irq(dev->irq, dev); | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
1da177e4 LT |
953 | /* |
954 | * Set or clear the multicast filter for this adaptor. | |
955 | * num_addrs == -1 Promiscuous mode, receive all packets. | |
956 | * num_addrs == 0 Normal mode, clear multicast list. | |
957 | * num_addrs > 0 Multicast mode, receive normal and MC packets, and do | |
958 | * best-effort filtering. | |
959 | */ | |
960 | static void | |
961 | ether1_setmulticastlist (struct net_device *dev) | |
962 | { | |
963 | } | |
964 | ||
965 | /* ------------------------------------------------------------------------- */ | |
966 | ||
663c2a69 | 967 | static void ether1_banner(void) |
1da177e4 LT |
968 | { |
969 | static unsigned int version_printed = 0; | |
970 | ||
971 | if (net_debug && version_printed++ == 0) | |
972 | printk(KERN_INFO "%s", version); | |
973 | } | |
974 | ||
0b179e31 AB |
975 | static const struct net_device_ops ether1_netdev_ops = { |
976 | .ndo_open = ether1_open, | |
977 | .ndo_stop = ether1_close, | |
978 | .ndo_start_xmit = ether1_sendpacket, | |
afc4b13d | 979 | .ndo_set_rx_mode = ether1_setmulticastlist, |
0b179e31 AB |
980 | .ndo_tx_timeout = ether1_timeout, |
981 | .ndo_validate_addr = eth_validate_addr, | |
0b179e31 AB |
982 | .ndo_set_mac_address = eth_mac_addr, |
983 | }; | |
984 | ||
663c2a69 | 985 | static int |
1da177e4 LT |
986 | ether1_probe(struct expansion_card *ec, const struct ecard_id *id) |
987 | { | |
988 | struct net_device *dev; | |
98ef22bb | 989 | u8 addr[ETH_ALEN]; |
1da177e4 LT |
990 | int i, ret = 0; |
991 | ||
992 | ether1_banner(); | |
993 | ||
994 | ret = ecard_request_resources(ec); | |
995 | if (ret) | |
996 | goto out; | |
997 | ||
998 | dev = alloc_etherdev(sizeof(struct ether1_priv)); | |
999 | if (!dev) { | |
1000 | ret = -ENOMEM; | |
1001 | goto release; | |
1002 | } | |
1003 | ||
1da177e4 LT |
1004 | SET_NETDEV_DEV(dev, &ec->dev); |
1005 | ||
1006 | dev->irq = ec->irq; | |
10bdaaa0 | 1007 | priv(dev)->base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); |
1da177e4 LT |
1008 | if (!priv(dev)->base) { |
1009 | ret = -ENOMEM; | |
1010 | goto free; | |
1011 | } | |
1012 | ||
1013 | if ((priv(dev)->bus_type = ether1_reset(dev)) == 0) { | |
1014 | ret = -ENODEV; | |
1015 | goto free; | |
1016 | } | |
1017 | ||
1018 | for (i = 0; i < 6; i++) | |
98ef22bb JK |
1019 | addr[i] = readb(IDPROM_ADDRESS + (i << 2)); |
1020 | eth_hw_addr_set(dev, addr); | |
1da177e4 LT |
1021 | |
1022 | if (ether1_init_2(dev)) { | |
1023 | ret = -ENODEV; | |
1024 | goto free; | |
1025 | } | |
1026 | ||
0b179e31 | 1027 | dev->netdev_ops = ðer1_netdev_ops; |
1da177e4 LT |
1028 | dev->watchdog_timeo = 5 * HZ / 100; |
1029 | ||
1030 | ret = register_netdev(dev); | |
1031 | if (ret) | |
1032 | goto free; | |
1033 | ||
e174961c JB |
1034 | printk(KERN_INFO "%s: ether1 in slot %d, %pM\n", |
1035 | dev->name, ec->slot_no, dev->dev_addr); | |
1da177e4 | 1036 | |
1da177e4 LT |
1037 | ecard_set_drvdata(ec, dev); |
1038 | return 0; | |
1039 | ||
1040 | free: | |
1da177e4 LT |
1041 | free_netdev(dev); |
1042 | release: | |
1043 | ecard_release_resources(ec); | |
1044 | out: | |
1045 | return ret; | |
1046 | } | |
1047 | ||
663c2a69 | 1048 | static void ether1_remove(struct expansion_card *ec) |
1da177e4 LT |
1049 | { |
1050 | struct net_device *dev = ecard_get_drvdata(ec); | |
1051 | ||
1052 | ecard_set_drvdata(ec, NULL); | |
1053 | ||
1054 | unregister_netdev(dev); | |
1da177e4 LT |
1055 | free_netdev(dev); |
1056 | ecard_release_resources(ec); | |
1057 | } | |
1058 | ||
1059 | static const struct ecard_id ether1_ids[] = { | |
1060 | { MANU_ACORN, PROD_ACORN_ETHER1 }, | |
1061 | { 0xffff, 0xffff } | |
1062 | }; | |
1063 | ||
1064 | static struct ecard_driver ether1_driver = { | |
1065 | .probe = ether1_probe, | |
663c2a69 | 1066 | .remove = ether1_remove, |
1da177e4 LT |
1067 | .id_table = ether1_ids, |
1068 | .drv = { | |
1069 | .name = "ether1", | |
1070 | }, | |
1071 | }; | |
1072 | ||
1073 | static int __init ether1_init(void) | |
1074 | { | |
1075 | return ecard_register_driver(ðer1_driver); | |
1076 | } | |
1077 | ||
1078 | static void __exit ether1_exit(void) | |
1079 | { | |
1080 | ecard_remove_driver(ðer1_driver); | |
1081 | } | |
1082 | ||
1083 | module_init(ether1_init); | |
1084 | module_exit(ether1_exit); | |
1085 | ||
1086 | MODULE_LICENSE("GPL"); |