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1da177e4 LT |
1 | /* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */ |
2 | /* | |
3 | Written 1993-2000 by Donald Becker. | |
4 | ||
5 | Copyright 1994-2000 by Donald Becker. | |
6 | Copyright 1993 United States Government as represented by the | |
7 | Director, National Security Agency. This software may be used and | |
8 | distributed according to the terms of the GNU General Public License, | |
9 | incorporated herein by reference. | |
10 | ||
11 | This driver is for the 3Com EtherLinkIII series. | |
12 | ||
13 | The author may be reached as becker@scyld.com, or C/O | |
14 | Scyld Computing Corporation | |
15 | 410 Severn Ave., Suite 210 | |
16 | Annapolis MD 21403 | |
17 | ||
18 | Known limitations: | |
19 | Because of the way 3c509 ISA detection works it's difficult to predict | |
20 | a priori which of several ISA-mode cards will be detected first. | |
21 | ||
22 | This driver does not use predictive interrupt mode, resulting in higher | |
23 | packet latency but lower overhead. If interrupts are disabled for an | |
24 | unusually long time it could also result in missed packets, but in | |
25 | practice this rarely happens. | |
26 | ||
27 | ||
28 | FIXES: | |
29 | Alan Cox: Removed the 'Unexpected interrupt' bug. | |
30 | Michael Meskes: Upgraded to Donald Becker's version 1.07. | |
6aa20a22 | 31 | Alan Cox: Increased the eeprom delay. Regardless of |
1da177e4 LT |
32 | what the docs say some people definitely |
33 | get problems with lower (but in card spec) | |
34 | delays | |
35 | v1.10 4/21/97 Fixed module code so that multiple cards may be detected, | |
36 | other cleanups. -djb | |
37 | Andrea Arcangeli: Upgraded to Donald Becker's version 1.12. | |
38 | Rick Payne: Fixed SMP race condition | |
39 | v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb | |
40 | v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb | |
41 | v1.15 1/31/98 Faster recovery for Tx errors. -djb | |
42 | v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb | |
43 | v1.18 12Mar2001 Andrew Morton <andrewm@uow.edu.au> | |
44 | - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz) | |
45 | - Reviewed against 1.18 from scyld.com | |
46 | v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com> | |
47 | - ethtool support | |
48 | v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com> | |
49 | - Power Management support | |
50 | v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com> | |
51 | - Full duplex support | |
52 | v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca> | |
53 | - Additional ethtool features | |
54 | v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com> | |
55 | - Increase *read_eeprom udelay to workaround oops with 2 cards. | |
56 | v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org> | |
ac4bed13 OZ |
57 | - Introduce driver model for EISA cards. |
58 | v1.20 04Feb2008 Ondrej Zary <linux@rainbow-software.org> | |
59 | - convert to isa_driver and pnp_driver and some cleanups | |
1da177e4 LT |
60 | */ |
61 | ||
62 | #define DRV_NAME "3c509" | |
ac4bed13 OZ |
63 | #define DRV_VERSION "1.20" |
64 | #define DRV_RELDATE "04Feb2008" | |
1da177e4 LT |
65 | |
66 | /* A few values that may be tweaked. */ | |
67 | ||
68 | /* Time in jiffies before concluding the transmitter is hung. */ | |
69 | #define TX_TIMEOUT (400*HZ/1000) | |
1da177e4 | 70 | |
1da177e4 | 71 | #include <linux/module.h> |
1da177e4 | 72 | #include <linux/mca.h> |
ac4bed13 OZ |
73 | #include <linux/isa.h> |
74 | #include <linux/pnp.h> | |
1da177e4 LT |
75 | #include <linux/string.h> |
76 | #include <linux/interrupt.h> | |
77 | #include <linux/errno.h> | |
78 | #include <linux/in.h> | |
79 | #include <linux/slab.h> | |
80 | #include <linux/ioport.h> | |
81 | #include <linux/init.h> | |
82 | #include <linux/netdevice.h> | |
83 | #include <linux/etherdevice.h> | |
84 | #include <linux/pm.h> | |
85 | #include <linux/skbuff.h> | |
86 | #include <linux/delay.h> /* for udelay() */ | |
87 | #include <linux/spinlock.h> | |
88 | #include <linux/ethtool.h> | |
89 | #include <linux/device.h> | |
90 | #include <linux/eisa.h> | |
91 | #include <linux/bitops.h> | |
92 | ||
93 | #include <asm/uaccess.h> | |
94 | #include <asm/io.h> | |
95 | #include <asm/irq.h> | |
96 | ||
2c2a8c53 | 97 | static char version[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n"; |
1da177e4 LT |
98 | |
99 | #ifdef EL3_DEBUG | |
100 | static int el3_debug = EL3_DEBUG; | |
101 | #else | |
102 | static int el3_debug = 2; | |
103 | #endif | |
104 | ||
105 | /* Used to do a global count of all the cards in the system. Must be | |
106 | * a global variable so that the mca/eisa probe routines can increment | |
107 | * it */ | |
108 | static int el3_cards = 0; | |
ac4bed13 | 109 | #define EL3_MAX_CARDS 8 |
1da177e4 LT |
110 | |
111 | /* To minimize the size of the driver source I only define operating | |
112 | constants if they are used several times. You'll need the manual | |
113 | anyway if you want to understand driver details. */ | |
114 | /* Offsets from base I/O address. */ | |
115 | #define EL3_DATA 0x00 | |
116 | #define EL3_CMD 0x0e | |
117 | #define EL3_STATUS 0x0e | |
ac4bed13 | 118 | #define EEPROM_READ 0x80 |
1da177e4 LT |
119 | |
120 | #define EL3_IO_EXTENT 16 | |
121 | ||
122 | #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD) | |
123 | ||
124 | ||
125 | /* The top five bits written to EL3_CMD are a command, the lower | |
126 | 11 bits are the parameter, if applicable. */ | |
127 | enum c509cmd { | |
128 | TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, | |
129 | RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11, | |
130 | TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, | |
131 | FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, | |
132 | SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, | |
133 | SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11, | |
134 | StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11, | |
135 | PowerDown = 28<<11, PowerAuto = 29<<11}; | |
136 | ||
137 | enum c509status { | |
138 | IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, | |
139 | TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, | |
140 | IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, }; | |
141 | ||
142 | /* The SetRxFilter command accepts the following classes: */ | |
143 | enum RxFilter { | |
144 | RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; | |
145 | ||
146 | /* Register window 1 offsets, the window used in normal operation. */ | |
147 | #define TX_FIFO 0x00 | |
148 | #define RX_FIFO 0x00 | |
149 | #define RX_STATUS 0x08 | |
150 | #define TX_STATUS 0x0B | |
151 | #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */ | |
152 | ||
153 | #define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */ | |
154 | #define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */ | |
155 | #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */ | |
156 | #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */ | |
157 | #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */ | |
158 | #define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */ | |
6aa20a22 | 159 | #define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */ |
1da177e4 LT |
160 | |
161 | /* | |
162 | * Must be a power of two (we use a binary and in the | |
163 | * circular queue) | |
164 | */ | |
165 | #define SKB_QUEUE_SIZE 64 | |
166 | ||
ac4bed13 OZ |
167 | enum el3_cardtype { EL3_ISA, EL3_PNP, EL3_MCA, EL3_EISA }; |
168 | ||
1da177e4 | 169 | struct el3_private { |
1da177e4 LT |
170 | spinlock_t lock; |
171 | /* skb send-queue */ | |
172 | int head, size; | |
173 | struct sk_buff *queue[SKB_QUEUE_SIZE]; | |
ac4bed13 | 174 | enum el3_cardtype type; |
1da177e4 | 175 | }; |
ac4bed13 OZ |
176 | static int id_port; |
177 | static int current_tag; | |
178 | static struct net_device *el3_devs[EL3_MAX_CARDS]; | |
179 | ||
180 | /* Parameters that may be passed into the module. */ | |
181 | static int debug = -1; | |
182 | static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1}; | |
183 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ | |
184 | static int max_interrupt_work = 10; | |
185 | #ifdef CONFIG_PNP | |
186 | static int nopnp; | |
187 | #endif | |
1da177e4 | 188 | |
ac4bed13 OZ |
189 | static int __init el3_common_init(struct net_device *dev); |
190 | static void el3_common_remove(struct net_device *dev); | |
1da177e4 LT |
191 | static ushort id_read_eeprom(int index); |
192 | static ushort read_eeprom(int ioaddr, int index); | |
193 | static int el3_open(struct net_device *dev); | |
194 | static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev); | |
7d12e780 | 195 | static irqreturn_t el3_interrupt(int irq, void *dev_id); |
1da177e4 LT |
196 | static void update_stats(struct net_device *dev); |
197 | static struct net_device_stats *el3_get_stats(struct net_device *dev); | |
198 | static int el3_rx(struct net_device *dev); | |
199 | static int el3_close(struct net_device *dev); | |
200 | static void set_multicast_list(struct net_device *dev); | |
201 | static void el3_tx_timeout (struct net_device *dev); | |
202 | static void el3_down(struct net_device *dev); | |
203 | static void el3_up(struct net_device *dev); | |
7282d491 | 204 | static const struct ethtool_ops ethtool_ops; |
ac4bed13 | 205 | #ifdef CONFIG_PM |
60a89ff6 PE |
206 | static int el3_suspend(struct device *, pm_message_t); |
207 | static int el3_resume(struct device *); | |
208 | #else | |
209 | #define el3_suspend NULL | |
210 | #define el3_resume NULL | |
1da177e4 | 211 | #endif |
60a89ff6 PE |
212 | |
213 | ||
1da177e4 | 214 | /* generic device remove for all device types */ |
1da177e4 | 215 | static int el3_device_remove (struct device *device); |
1da177e4 LT |
216 | #ifdef CONFIG_NET_POLL_CONTROLLER |
217 | static void el3_poll_controller(struct net_device *dev); | |
218 | #endif | |
219 | ||
ac4bed13 OZ |
220 | /* Return 0 on success, 1 on error, 2 when found already detected PnP card */ |
221 | static int el3_isa_id_sequence(__be16 *phys_addr) | |
222 | { | |
223 | short lrs_state = 0xff; | |
224 | int i; | |
225 | ||
226 | /* ISA boards are detected by sending the ID sequence to the | |
227 | ID_PORT. We find cards past the first by setting the 'current_tag' | |
228 | on cards as they are found. Cards with their tag set will not | |
229 | respond to subsequent ID sequences. */ | |
230 | ||
231 | outb(0x00, id_port); | |
232 | outb(0x00, id_port); | |
233 | for (i = 0; i < 255; i++) { | |
234 | outb(lrs_state, id_port); | |
235 | lrs_state <<= 1; | |
236 | lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state; | |
237 | } | |
238 | /* For the first probe, clear all board's tag registers. */ | |
239 | if (current_tag == 0) | |
240 | outb(0xd0, id_port); | |
241 | else /* Otherwise kill off already-found boards. */ | |
242 | outb(0xd8, id_port); | |
243 | if (id_read_eeprom(7) != 0x6d50) | |
244 | return 1; | |
245 | /* Read in EEPROM data, which does contention-select. | |
246 | Only the lowest address board will stay "on-line". | |
247 | 3Com got the byte order backwards. */ | |
248 | for (i = 0; i < 3; i++) | |
249 | phys_addr[i] = htons(id_read_eeprom(i)); | |
250 | #ifdef CONFIG_PNP | |
251 | if (!nopnp) { | |
252 | /* The ISA PnP 3c509 cards respond to the ID sequence too. | |
253 | This check is needed in order not to register them twice. */ | |
254 | for (i = 0; i < el3_cards; i++) { | |
255 | struct el3_private *lp = netdev_priv(el3_devs[i]); | |
256 | if (lp->type == EL3_PNP | |
257 | && !memcmp(phys_addr, el3_devs[i]->dev_addr, | |
258 | ETH_ALEN)) { | |
259 | if (el3_debug > 3) | |
260 | printk(KERN_DEBUG "3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n", | |
261 | phys_addr[0] & 0xff, phys_addr[0] >> 8, | |
262 | phys_addr[1] & 0xff, phys_addr[1] >> 8, | |
263 | phys_addr[2] & 0xff, phys_addr[2] >> 8); | |
264 | /* Set the adaptor tag so that the next card can be found. */ | |
265 | outb(0xd0 + ++current_tag, id_port); | |
266 | return 2; | |
267 | } | |
268 | } | |
269 | } | |
270 | #endif /* CONFIG_PNP */ | |
271 | return 0; | |
272 | ||
273 | } | |
274 | ||
275 | static void __devinit el3_dev_fill(struct net_device *dev, __be16 *phys_addr, | |
276 | int ioaddr, int irq, int if_port, | |
277 | enum el3_cardtype type) | |
278 | { | |
279 | struct el3_private *lp = netdev_priv(dev); | |
280 | ||
281 | memcpy(dev->dev_addr, phys_addr, ETH_ALEN); | |
282 | dev->base_addr = ioaddr; | |
283 | dev->irq = irq; | |
284 | dev->if_port = if_port; | |
285 | lp->type = type; | |
286 | } | |
287 | ||
288 | static int __devinit el3_isa_match(struct device *pdev, | |
289 | unsigned int ndev) | |
290 | { | |
291 | struct net_device *dev; | |
292 | int ioaddr, isa_irq, if_port, err; | |
293 | unsigned int iobase; | |
294 | __be16 phys_addr[3]; | |
295 | ||
296 | while ((err = el3_isa_id_sequence(phys_addr)) == 2) | |
297 | ; /* Skip to next card when PnP card found */ | |
298 | if (err == 1) | |
299 | return 0; | |
300 | ||
301 | iobase = id_read_eeprom(8); | |
302 | if_port = iobase >> 14; | |
303 | ioaddr = 0x200 + ((iobase & 0x1f) << 4); | |
304 | if (irq[el3_cards] > 1 && irq[el3_cards] < 16) | |
305 | isa_irq = irq[el3_cards]; | |
306 | else | |
307 | isa_irq = id_read_eeprom(9) >> 12; | |
308 | ||
309 | dev = alloc_etherdev(sizeof(struct el3_private)); | |
310 | if (!dev) | |
311 | return -ENOMEM; | |
312 | ||
313 | netdev_boot_setup_check(dev); | |
314 | ||
315 | if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-isa")) { | |
316 | free_netdev(dev); | |
317 | return 0; | |
318 | } | |
319 | ||
320 | /* Set the adaptor tag so that the next card can be found. */ | |
321 | outb(0xd0 + ++current_tag, id_port); | |
322 | ||
323 | /* Activate the adaptor at the EEPROM location. */ | |
324 | outb((ioaddr >> 4) | 0xe0, id_port); | |
325 | ||
326 | EL3WINDOW(0); | |
327 | if (inw(ioaddr) != 0x6d50) { | |
328 | free_netdev(dev); | |
329 | return 0; | |
330 | } | |
331 | ||
332 | /* Free the interrupt so that some other card can use it. */ | |
333 | outw(0x0f00, ioaddr + WN0_IRQ); | |
334 | ||
335 | el3_dev_fill(dev, phys_addr, ioaddr, isa_irq, if_port, EL3_ISA); | |
336 | dev_set_drvdata(pdev, dev); | |
337 | if (el3_common_init(dev)) { | |
338 | free_netdev(dev); | |
339 | return 0; | |
340 | } | |
341 | ||
342 | el3_devs[el3_cards++] = dev; | |
343 | return 1; | |
344 | } | |
345 | ||
346 | static int __devexit el3_isa_remove(struct device *pdev, | |
347 | unsigned int ndev) | |
348 | { | |
349 | el3_device_remove(pdev); | |
350 | dev_set_drvdata(pdev, NULL); | |
351 | return 0; | |
352 | } | |
353 | ||
354 | #ifdef CONFIG_PM | |
355 | static int el3_isa_suspend(struct device *dev, unsigned int n, | |
356 | pm_message_t state) | |
357 | { | |
358 | current_tag = 0; | |
359 | return el3_suspend(dev, state); | |
360 | } | |
361 | ||
362 | static int el3_isa_resume(struct device *dev, unsigned int n) | |
363 | { | |
364 | struct net_device *ndev = dev_get_drvdata(dev); | |
365 | int ioaddr = ndev->base_addr, err; | |
366 | __be16 phys_addr[3]; | |
367 | ||
368 | while ((err = el3_isa_id_sequence(phys_addr)) == 2) | |
369 | ; /* Skip to next card when PnP card found */ | |
370 | if (err == 1) | |
371 | return 0; | |
372 | /* Set the adaptor tag so that the next card can be found. */ | |
373 | outb(0xd0 + ++current_tag, id_port); | |
374 | /* Enable the card */ | |
375 | outb((ioaddr >> 4) | 0xe0, id_port); | |
376 | EL3WINDOW(0); | |
377 | if (inw(ioaddr) != 0x6d50) | |
378 | return 1; | |
379 | /* Free the interrupt so that some other card can use it. */ | |
380 | outw(0x0f00, ioaddr + WN0_IRQ); | |
381 | return el3_resume(dev); | |
382 | } | |
383 | #endif | |
384 | ||
385 | static struct isa_driver el3_isa_driver = { | |
386 | .match = el3_isa_match, | |
387 | .remove = __devexit_p(el3_isa_remove), | |
388 | #ifdef CONFIG_PM | |
389 | .suspend = el3_isa_suspend, | |
390 | .resume = el3_isa_resume, | |
391 | #endif | |
392 | .driver = { | |
393 | .name = "3c509" | |
394 | }, | |
395 | }; | |
396 | static int isa_registered; | |
397 | ||
398 | #ifdef CONFIG_PNP | |
399 | static struct pnp_device_id el3_pnp_ids[] = { | |
400 | { .id = "TCM5090" }, /* 3Com Etherlink III (TP) */ | |
401 | { .id = "TCM5091" }, /* 3Com Etherlink III */ | |
402 | { .id = "TCM5094" }, /* 3Com Etherlink III (combo) */ | |
403 | { .id = "TCM5095" }, /* 3Com Etherlink III (TPO) */ | |
404 | { .id = "TCM5098" }, /* 3Com Etherlink III (TPC) */ | |
405 | { .id = "PNP80f7" }, /* 3Com Etherlink III compatible */ | |
406 | { .id = "PNP80f8" }, /* 3Com Etherlink III compatible */ | |
407 | { .id = "" } | |
408 | }; | |
409 | MODULE_DEVICE_TABLE(pnp, el3_pnp_ids); | |
410 | ||
411 | static int __devinit el3_pnp_probe(struct pnp_dev *pdev, | |
412 | const struct pnp_device_id *id) | |
413 | { | |
414 | short i; | |
415 | int ioaddr, irq, if_port; | |
4ec7ffa2 | 416 | __be16 phys_addr[3]; |
ac4bed13 OZ |
417 | struct net_device *dev = NULL; |
418 | int err; | |
419 | ||
420 | ioaddr = pnp_port_start(pdev, 0); | |
421 | if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-pnp")) | |
422 | return -EBUSY; | |
423 | irq = pnp_irq(pdev, 0); | |
424 | EL3WINDOW(0); | |
425 | for (i = 0; i < 3; i++) | |
426 | phys_addr[i] = htons(read_eeprom(ioaddr, i)); | |
427 | if_port = read_eeprom(ioaddr, 8) >> 14; | |
428 | dev = alloc_etherdev(sizeof(struct el3_private)); | |
429 | if (!dev) { | |
430 | release_region(ioaddr, EL3_IO_EXTENT); | |
431 | return -ENOMEM; | |
432 | } | |
433 | SET_NETDEV_DEV(dev, &pdev->dev); | |
434 | netdev_boot_setup_check(dev); | |
435 | ||
436 | el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_PNP); | |
437 | pnp_set_drvdata(pdev, dev); | |
438 | err = el3_common_init(dev); | |
439 | ||
440 | if (err) { | |
441 | pnp_set_drvdata(pdev, NULL); | |
442 | free_netdev(dev); | |
443 | return err; | |
444 | } | |
445 | ||
446 | el3_devs[el3_cards++] = dev; | |
447 | return 0; | |
448 | } | |
449 | ||
450 | static void __devexit el3_pnp_remove(struct pnp_dev *pdev) | |
451 | { | |
452 | el3_common_remove(pnp_get_drvdata(pdev)); | |
453 | pnp_set_drvdata(pdev, NULL); | |
454 | } | |
455 | ||
456 | #ifdef CONFIG_PM | |
457 | static int el3_pnp_suspend(struct pnp_dev *pdev, pm_message_t state) | |
458 | { | |
459 | return el3_suspend(&pdev->dev, state); | |
460 | } | |
461 | ||
462 | static int el3_pnp_resume(struct pnp_dev *pdev) | |
463 | { | |
464 | return el3_resume(&pdev->dev); | |
465 | } | |
466 | #endif | |
467 | ||
468 | static struct pnp_driver el3_pnp_driver = { | |
469 | .name = "3c509", | |
470 | .id_table = el3_pnp_ids, | |
471 | .probe = el3_pnp_probe, | |
472 | .remove = __devexit_p(el3_pnp_remove), | |
473 | #ifdef CONFIG_PM | |
474 | .suspend = el3_pnp_suspend, | |
475 | .resume = el3_pnp_resume, | |
476 | #endif | |
477 | }; | |
478 | static int pnp_registered; | |
479 | #endif /* CONFIG_PNP */ | |
480 | ||
1da177e4 LT |
481 | #ifdef CONFIG_EISA |
482 | static struct eisa_device_id el3_eisa_ids[] = { | |
483 | { "TCM5092" }, | |
484 | { "TCM5093" }, | |
f04e3f09 | 485 | { "TCM5095" }, |
1da177e4 LT |
486 | { "" } |
487 | }; | |
07563c71 | 488 | MODULE_DEVICE_TABLE(eisa, el3_eisa_ids); |
1da177e4 LT |
489 | |
490 | static int el3_eisa_probe (struct device *device); | |
491 | ||
492 | static struct eisa_driver el3_eisa_driver = { | |
493 | .id_table = el3_eisa_ids, | |
494 | .driver = { | |
ac4bed13 | 495 | .name = "3c579", |
1da177e4 | 496 | .probe = el3_eisa_probe, |
60a89ff6 PE |
497 | .remove = __devexit_p (el3_device_remove), |
498 | .suspend = el3_suspend, | |
499 | .resume = el3_resume, | |
1da177e4 LT |
500 | } |
501 | }; | |
ac4bed13 | 502 | static int eisa_registered; |
1da177e4 LT |
503 | #endif |
504 | ||
505 | #ifdef CONFIG_MCA | |
506 | static int el3_mca_probe(struct device *dev); | |
507 | ||
508 | static short el3_mca_adapter_ids[] __initdata = { | |
509 | 0x627c, | |
510 | 0x627d, | |
511 | 0x62db, | |
512 | 0x62f6, | |
513 | 0x62f7, | |
514 | 0x0000 | |
515 | }; | |
516 | ||
517 | static char *el3_mca_adapter_names[] __initdata = { | |
518 | "3Com 3c529 EtherLink III (10base2)", | |
519 | "3Com 3c529 EtherLink III (10baseT)", | |
520 | "3Com 3c529 EtherLink III (test mode)", | |
521 | "3Com 3c529 EtherLink III (TP or coax)", | |
522 | "3Com 3c529 EtherLink III (TP)", | |
523 | NULL | |
524 | }; | |
525 | ||
526 | static struct mca_driver el3_mca_driver = { | |
527 | .id_table = el3_mca_adapter_ids, | |
528 | .driver = { | |
529 | .name = "3c529", | |
530 | .bus = &mca_bus_type, | |
531 | .probe = el3_mca_probe, | |
532 | .remove = __devexit_p(el3_device_remove), | |
60a89ff6 PE |
533 | .suspend = el3_suspend, |
534 | .resume = el3_resume, | |
1da177e4 LT |
535 | }, |
536 | }; | |
ac4bed13 | 537 | static int mca_registered; |
1da177e4 LT |
538 | #endif /* CONFIG_MCA */ |
539 | ||
1da177e4 LT |
540 | static int __init el3_common_init(struct net_device *dev) |
541 | { | |
542 | struct el3_private *lp = netdev_priv(dev); | |
1da177e4 | 543 | int err; |
0795af57 JP |
544 | DECLARE_MAC_BUF(mac); |
545 | const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"}; | |
1da177e4 LT |
546 | |
547 | spin_lock_init(&lp->lock); | |
548 | ||
549 | if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */ | |
550 | dev->if_port = (dev->mem_start & 0x0f); | |
551 | } else { /* xcvr codes 0/8 */ | |
552 | /* use eeprom value, but save user's full-duplex selection */ | |
553 | dev->if_port |= (dev->mem_start & 0x08); | |
554 | } | |
555 | ||
556 | /* The EL3-specific entries in the device structure. */ | |
557 | dev->open = &el3_open; | |
558 | dev->hard_start_xmit = &el3_start_xmit; | |
559 | dev->stop = &el3_close; | |
560 | dev->get_stats = &el3_get_stats; | |
561 | dev->set_multicast_list = &set_multicast_list; | |
562 | dev->tx_timeout = el3_tx_timeout; | |
563 | dev->watchdog_timeo = TX_TIMEOUT; | |
564 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
565 | dev->poll_controller = el3_poll_controller; | |
566 | #endif | |
567 | SET_ETHTOOL_OPS(dev, ðtool_ops); | |
568 | ||
569 | err = register_netdev(dev); | |
570 | if (err) { | |
571 | printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n", | |
572 | dev->base_addr, dev->irq); | |
573 | release_region(dev->base_addr, EL3_IO_EXTENT); | |
574 | return err; | |
575 | } | |
576 | ||
0795af57 JP |
577 | printk(KERN_INFO "%s: 3c5x9 found at %#3.3lx, %s port, " |
578 | "address %s, IRQ %d.\n", | |
579 | dev->name, dev->base_addr, if_names[(dev->if_port & 0x03)], | |
580 | print_mac(mac, dev->dev_addr), dev->irq); | |
1da177e4 LT |
581 | |
582 | if (el3_debug > 0) | |
2c2a8c53 | 583 | printk(KERN_INFO "%s", version); |
1da177e4 LT |
584 | return 0; |
585 | ||
586 | } | |
587 | ||
588 | static void el3_common_remove (struct net_device *dev) | |
589 | { | |
1da177e4 LT |
590 | unregister_netdev (dev); |
591 | release_region(dev->base_addr, EL3_IO_EXTENT); | |
592 | free_netdev (dev); | |
593 | } | |
594 | ||
1da177e4 LT |
595 | #ifdef CONFIG_MCA |
596 | static int __init el3_mca_probe(struct device *device) | |
597 | { | |
598 | /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch, | |
599 | * heavily modified by Chris Beauregard | |
600 | * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA | |
601 | * probing. | |
602 | * | |
603 | * redone for multi-card detection by ZP Gu (zpg@castle.net) | |
604 | * now works as a module */ | |
605 | ||
1da177e4 LT |
606 | short i; |
607 | int ioaddr, irq, if_port; | |
4ec7ffa2 | 608 | __be16 phys_addr[3]; |
1da177e4 LT |
609 | struct net_device *dev = NULL; |
610 | u_char pos4, pos5; | |
611 | struct mca_device *mdev = to_mca_device(device); | |
612 | int slot = mdev->slot; | |
613 | int err; | |
614 | ||
615 | pos4 = mca_device_read_stored_pos(mdev, 4); | |
616 | pos5 = mca_device_read_stored_pos(mdev, 5); | |
617 | ||
618 | ioaddr = ((short)((pos4&0xfc)|0x02)) << 8; | |
619 | irq = pos5 & 0x0f; | |
620 | ||
621 | ||
ac4bed13 | 622 | printk(KERN_INFO "3c529: found %s at slot %d\n", |
1da177e4 LT |
623 | el3_mca_adapter_names[mdev->index], slot + 1); |
624 | ||
625 | /* claim the slot */ | |
626 | strncpy(mdev->name, el3_mca_adapter_names[mdev->index], | |
627 | sizeof(mdev->name)); | |
628 | mca_device_set_claim(mdev, 1); | |
629 | ||
630 | if_port = pos4 & 0x03; | |
631 | ||
632 | irq = mca_device_transform_irq(mdev, irq); | |
6aa20a22 | 633 | ioaddr = mca_device_transform_ioport(mdev, ioaddr); |
1da177e4 | 634 | if (el3_debug > 2) { |
ac4bed13 | 635 | printk(KERN_DEBUG "3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port); |
1da177e4 LT |
636 | } |
637 | EL3WINDOW(0); | |
4ec7ffa2 AV |
638 | for (i = 0; i < 3; i++) |
639 | phys_addr[i] = htons(read_eeprom(ioaddr, i)); | |
1da177e4 LT |
640 | |
641 | dev = alloc_etherdev(sizeof (struct el3_private)); | |
642 | if (dev == NULL) { | |
4ec7ffa2 AV |
643 | release_region(ioaddr, EL3_IO_EXTENT); |
644 | return -ENOMEM; | |
1da177e4 LT |
645 | } |
646 | ||
1da177e4 LT |
647 | netdev_boot_setup_check(dev); |
648 | ||
ac4bed13 | 649 | el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_MCA); |
1da177e4 LT |
650 | device->driver_data = dev; |
651 | err = el3_common_init(dev); | |
652 | ||
653 | if (err) { | |
654 | device->driver_data = NULL; | |
655 | free_netdev(dev); | |
656 | return -ENOMEM; | |
657 | } | |
658 | ||
ac4bed13 | 659 | el3_devs[el3_cards++] = dev; |
1da177e4 LT |
660 | return 0; |
661 | } | |
6aa20a22 | 662 | |
1da177e4 LT |
663 | #endif /* CONFIG_MCA */ |
664 | ||
665 | #ifdef CONFIG_EISA | |
666 | static int __init el3_eisa_probe (struct device *device) | |
667 | { | |
1da177e4 LT |
668 | short i; |
669 | int ioaddr, irq, if_port; | |
4ec7ffa2 | 670 | __be16 phys_addr[3]; |
1da177e4 LT |
671 | struct net_device *dev = NULL; |
672 | struct eisa_device *edev; | |
673 | int err; | |
674 | ||
675 | /* Yeepee, The driver framework is calling us ! */ | |
676 | edev = to_eisa_device (device); | |
677 | ioaddr = edev->base_addr; | |
6aa20a22 | 678 | |
ac4bed13 | 679 | if (!request_region(ioaddr, EL3_IO_EXTENT, "3c579-eisa")) |
1da177e4 LT |
680 | return -EBUSY; |
681 | ||
682 | /* Change the register set to the configuration window 0. */ | |
683 | outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD); | |
684 | ||
685 | irq = inw(ioaddr + WN0_IRQ) >> 12; | |
686 | if_port = inw(ioaddr + 6)>>14; | |
687 | for (i = 0; i < 3; i++) | |
688 | phys_addr[i] = htons(read_eeprom(ioaddr, i)); | |
689 | ||
690 | /* Restore the "Product ID" to the EEPROM read register. */ | |
691 | read_eeprom(ioaddr, 3); | |
692 | ||
693 | dev = alloc_etherdev(sizeof (struct el3_private)); | |
694 | if (dev == NULL) { | |
695 | release_region(ioaddr, EL3_IO_EXTENT); | |
696 | return -ENOMEM; | |
697 | } | |
698 | ||
1da177e4 LT |
699 | netdev_boot_setup_check(dev); |
700 | ||
ac4bed13 | 701 | el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_EISA); |
1da177e4 LT |
702 | eisa_set_drvdata (edev, dev); |
703 | err = el3_common_init(dev); | |
704 | ||
705 | if (err) { | |
706 | eisa_set_drvdata (edev, NULL); | |
707 | free_netdev(dev); | |
708 | return err; | |
709 | } | |
710 | ||
ac4bed13 | 711 | el3_devs[el3_cards++] = dev; |
1da177e4 LT |
712 | return 0; |
713 | } | |
714 | #endif | |
715 | ||
1da177e4 LT |
716 | /* This remove works for all device types. |
717 | * | |
718 | * The net dev must be stored in the driver_data field */ | |
719 | static int __devexit el3_device_remove (struct device *device) | |
720 | { | |
721 | struct net_device *dev; | |
722 | ||
723 | dev = device->driver_data; | |
724 | ||
725 | el3_common_remove (dev); | |
726 | return 0; | |
727 | } | |
1da177e4 LT |
728 | |
729 | /* Read a word from the EEPROM using the regular EEPROM access register. | |
730 | Assume that we are in register window zero. | |
731 | */ | |
732 | static ushort read_eeprom(int ioaddr, int index) | |
733 | { | |
734 | outw(EEPROM_READ + index, ioaddr + 10); | |
6aa20a22 | 735 | /* Pause for at least 162 us. for the read to take place. |
1da177e4 LT |
736 | Some chips seem to require much longer */ |
737 | mdelay(2); | |
738 | return inw(ioaddr + 12); | |
739 | } | |
740 | ||
741 | /* Read a word from the EEPROM when in the ISA ID probe state. */ | |
ac4bed13 | 742 | static ushort id_read_eeprom(int index) |
1da177e4 LT |
743 | { |
744 | int bit, word = 0; | |
745 | ||
746 | /* Issue read command, and pause for at least 162 us. for it to complete. | |
747 | Assume extra-fast 16Mhz bus. */ | |
748 | outb(EEPROM_READ + index, id_port); | |
749 | ||
750 | /* Pause for at least 162 us. for the read to take place. */ | |
751 | /* Some chips seem to require much longer */ | |
752 | mdelay(4); | |
6aa20a22 | 753 | |
1da177e4 LT |
754 | for (bit = 15; bit >= 0; bit--) |
755 | word = (word << 1) + (inb(id_port) & 0x01); | |
756 | ||
757 | if (el3_debug > 3) | |
ac4bed13 | 758 | printk(KERN_DEBUG " 3c509 EEPROM word %d %#4.4x.\n", index, word); |
1da177e4 LT |
759 | |
760 | return word; | |
761 | } | |
762 | ||
763 | ||
764 | static int | |
765 | el3_open(struct net_device *dev) | |
766 | { | |
767 | int ioaddr = dev->base_addr; | |
768 | int i; | |
769 | ||
770 | outw(TxReset, ioaddr + EL3_CMD); | |
771 | outw(RxReset, ioaddr + EL3_CMD); | |
772 | outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); | |
773 | ||
774 | i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev); | |
775 | if (i) | |
776 | return i; | |
777 | ||
778 | EL3WINDOW(0); | |
779 | if (el3_debug > 3) | |
ac4bed13 | 780 | printk(KERN_DEBUG "%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name, |
1da177e4 LT |
781 | dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS)); |
782 | ||
783 | el3_up(dev); | |
784 | ||
785 | if (el3_debug > 3) | |
ac4bed13 | 786 | printk(KERN_DEBUG "%s: Opened 3c509 IRQ %d status %4.4x.\n", |
1da177e4 LT |
787 | dev->name, dev->irq, inw(ioaddr + EL3_STATUS)); |
788 | ||
789 | return 0; | |
790 | } | |
791 | ||
792 | static void | |
793 | el3_tx_timeout (struct net_device *dev) | |
794 | { | |
1da177e4 LT |
795 | int ioaddr = dev->base_addr; |
796 | ||
797 | /* Transmitter timeout, serious problems. */ | |
ac4bed13 | 798 | printk(KERN_WARNING "%s: transmit timed out, Tx_status %2.2x status %4.4x " |
1da177e4 LT |
799 | "Tx FIFO room %d.\n", |
800 | dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS), | |
801 | inw(ioaddr + TX_FREE)); | |
815f8802 | 802 | dev->stats.tx_errors++; |
1da177e4 LT |
803 | dev->trans_start = jiffies; |
804 | /* Issue TX_RESET and TX_START commands. */ | |
805 | outw(TxReset, ioaddr + EL3_CMD); | |
806 | outw(TxEnable, ioaddr + EL3_CMD); | |
807 | netif_wake_queue(dev); | |
808 | } | |
809 | ||
810 | ||
811 | static int | |
812 | el3_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
813 | { | |
814 | struct el3_private *lp = netdev_priv(dev); | |
815 | int ioaddr = dev->base_addr; | |
816 | unsigned long flags; | |
817 | ||
818 | netif_stop_queue (dev); | |
819 | ||
815f8802 | 820 | dev->stats.tx_bytes += skb->len; |
6aa20a22 | 821 | |
1da177e4 | 822 | if (el3_debug > 4) { |
ac4bed13 | 823 | printk(KERN_DEBUG "%s: el3_start_xmit(length = %u) called, status %4.4x.\n", |
1da177e4 LT |
824 | dev->name, skb->len, inw(ioaddr + EL3_STATUS)); |
825 | } | |
826 | #if 0 | |
827 | #ifndef final_version | |
828 | { /* Error-checking code, delete someday. */ | |
829 | ushort status = inw(ioaddr + EL3_STATUS); | |
830 | if (status & 0x0001 /* IRQ line active, missed one. */ | |
831 | && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */ | |
ac4bed13 | 832 | printk(KERN_DEBUG "%s: Missed interrupt, status then %04x now %04x" |
1da177e4 LT |
833 | " Tx %2.2x Rx %4.4x.\n", dev->name, status, |
834 | inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS), | |
835 | inw(ioaddr + RX_STATUS)); | |
836 | /* Fake interrupt trigger by masking, acknowledge interrupts. */ | |
837 | outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); | |
838 | outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, | |
839 | ioaddr + EL3_CMD); | |
840 | outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); | |
841 | } | |
842 | } | |
843 | #endif | |
844 | #endif | |
845 | /* | |
846 | * We lock the driver against other processors. Note | |
847 | * we don't need to lock versus the IRQ as we suspended | |
848 | * that. This means that we lose the ability to take | |
849 | * an RX during a TX upload. That sucks a bit with SMP | |
850 | * on an original 3c509 (2K buffer) | |
851 | * | |
852 | * Using disable_irq stops us crapping on other | |
853 | * time sensitive devices. | |
854 | */ | |
855 | ||
856 | spin_lock_irqsave(&lp->lock, flags); | |
857 | ||
858 | /* Put out the doubleword header... */ | |
859 | outw(skb->len, ioaddr + TX_FIFO); | |
860 | outw(0x00, ioaddr + TX_FIFO); | |
861 | /* ... and the packet rounded to a doubleword. */ | |
1da177e4 | 862 | outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); |
1da177e4 LT |
863 | |
864 | dev->trans_start = jiffies; | |
865 | if (inw(ioaddr + TX_FREE) > 1536) | |
866 | netif_start_queue(dev); | |
867 | else | |
868 | /* Interrupt us when the FIFO has room for max-sized packet. */ | |
869 | outw(SetTxThreshold + 1536, ioaddr + EL3_CMD); | |
870 | ||
871 | spin_unlock_irqrestore(&lp->lock, flags); | |
872 | ||
873 | dev_kfree_skb (skb); | |
874 | ||
875 | /* Clear the Tx status stack. */ | |
876 | { | |
877 | short tx_status; | |
878 | int i = 4; | |
879 | ||
880 | while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { | |
815f8802 | 881 | if (tx_status & 0x38) dev->stats.tx_aborted_errors++; |
1da177e4 LT |
882 | if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); |
883 | if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); | |
884 | outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ | |
885 | } | |
886 | } | |
887 | return 0; | |
888 | } | |
889 | ||
890 | /* The EL3 interrupt handler. */ | |
891 | static irqreturn_t | |
7d12e780 | 892 | el3_interrupt(int irq, void *dev_id) |
1da177e4 | 893 | { |
c31f28e7 | 894 | struct net_device *dev = dev_id; |
1da177e4 LT |
895 | struct el3_private *lp; |
896 | int ioaddr, status; | |
897 | int i = max_interrupt_work; | |
898 | ||
1da177e4 LT |
899 | lp = netdev_priv(dev); |
900 | spin_lock(&lp->lock); | |
901 | ||
902 | ioaddr = dev->base_addr; | |
903 | ||
904 | if (el3_debug > 4) { | |
905 | status = inw(ioaddr + EL3_STATUS); | |
ac4bed13 | 906 | printk(KERN_DEBUG "%s: interrupt, status %4.4x.\n", dev->name, status); |
1da177e4 LT |
907 | } |
908 | ||
909 | while ((status = inw(ioaddr + EL3_STATUS)) & | |
910 | (IntLatch | RxComplete | StatsFull)) { | |
911 | ||
912 | if (status & RxComplete) | |
913 | el3_rx(dev); | |
914 | ||
915 | if (status & TxAvailable) { | |
916 | if (el3_debug > 5) | |
ac4bed13 | 917 | printk(KERN_DEBUG " TX room bit was handled.\n"); |
1da177e4 LT |
918 | /* There's room in the FIFO for a full-sized packet. */ |
919 | outw(AckIntr | TxAvailable, ioaddr + EL3_CMD); | |
920 | netif_wake_queue (dev); | |
921 | } | |
922 | if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) { | |
923 | /* Handle all uncommon interrupts. */ | |
924 | if (status & StatsFull) /* Empty statistics. */ | |
925 | update_stats(dev); | |
926 | if (status & RxEarly) { /* Rx early is unused. */ | |
927 | el3_rx(dev); | |
928 | outw(AckIntr | RxEarly, ioaddr + EL3_CMD); | |
929 | } | |
930 | if (status & TxComplete) { /* Really Tx error. */ | |
1da177e4 LT |
931 | short tx_status; |
932 | int i = 4; | |
933 | ||
934 | while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { | |
815f8802 | 935 | if (tx_status & 0x38) dev->stats.tx_aborted_errors++; |
1da177e4 LT |
936 | if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); |
937 | if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); | |
938 | outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ | |
939 | } | |
940 | } | |
941 | if (status & AdapterFailure) { | |
942 | /* Adapter failure requires Rx reset and reinit. */ | |
943 | outw(RxReset, ioaddr + EL3_CMD); | |
944 | /* Set the Rx filter to the current state. */ | |
945 | outw(SetRxFilter | RxStation | RxBroadcast | |
946 | | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0) | |
947 | | (dev->flags & IFF_PROMISC ? RxProm : 0), | |
948 | ioaddr + EL3_CMD); | |
949 | outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */ | |
950 | outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD); | |
951 | } | |
952 | } | |
953 | ||
954 | if (--i < 0) { | |
ac4bed13 | 955 | printk(KERN_ERR "%s: Infinite loop in interrupt, status %4.4x.\n", |
1da177e4 LT |
956 | dev->name, status); |
957 | /* Clear all interrupts. */ | |
958 | outw(AckIntr | 0xFF, ioaddr + EL3_CMD); | |
959 | break; | |
960 | } | |
961 | /* Acknowledge the IRQ. */ | |
962 | outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */ | |
963 | } | |
964 | ||
965 | if (el3_debug > 4) { | |
ac4bed13 | 966 | printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n", dev->name, |
1da177e4 LT |
967 | inw(ioaddr + EL3_STATUS)); |
968 | } | |
969 | spin_unlock(&lp->lock); | |
970 | return IRQ_HANDLED; | |
971 | } | |
972 | ||
973 | ||
974 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
975 | /* | |
976 | * Polling receive - used by netconsole and other diagnostic tools | |
977 | * to allow network i/o with interrupts disabled. | |
978 | */ | |
979 | static void el3_poll_controller(struct net_device *dev) | |
980 | { | |
981 | disable_irq(dev->irq); | |
7d12e780 | 982 | el3_interrupt(dev->irq, dev); |
1da177e4 LT |
983 | enable_irq(dev->irq); |
984 | } | |
985 | #endif | |
986 | ||
987 | static struct net_device_stats * | |
988 | el3_get_stats(struct net_device *dev) | |
989 | { | |
990 | struct el3_private *lp = netdev_priv(dev); | |
991 | unsigned long flags; | |
992 | ||
993 | /* | |
994 | * This is fast enough not to bother with disable IRQ | |
995 | * stuff. | |
996 | */ | |
6aa20a22 | 997 | |
1da177e4 LT |
998 | spin_lock_irqsave(&lp->lock, flags); |
999 | update_stats(dev); | |
1000 | spin_unlock_irqrestore(&lp->lock, flags); | |
815f8802 | 1001 | return &dev->stats; |
1da177e4 LT |
1002 | } |
1003 | ||
1004 | /* Update statistics. We change to register window 6, so this should be run | |
1005 | single-threaded if the device is active. This is expected to be a rare | |
1006 | operation, and it's simpler for the rest of the driver to assume that | |
1007 | window 1 is always valid rather than use a special window-state variable. | |
1008 | */ | |
1009 | static void update_stats(struct net_device *dev) | |
1010 | { | |
1da177e4 LT |
1011 | int ioaddr = dev->base_addr; |
1012 | ||
1013 | if (el3_debug > 5) | |
1014 | printk(" Updating the statistics.\n"); | |
1015 | /* Turn off statistics updates while reading. */ | |
1016 | outw(StatsDisable, ioaddr + EL3_CMD); | |
1017 | /* Switch to the stats window, and read everything. */ | |
1018 | EL3WINDOW(6); | |
815f8802 PZ |
1019 | dev->stats.tx_carrier_errors += inb(ioaddr + 0); |
1020 | dev->stats.tx_heartbeat_errors += inb(ioaddr + 1); | |
1da177e4 | 1021 | /* Multiple collisions. */ inb(ioaddr + 2); |
815f8802 PZ |
1022 | dev->stats.collisions += inb(ioaddr + 3); |
1023 | dev->stats.tx_window_errors += inb(ioaddr + 4); | |
1024 | dev->stats.rx_fifo_errors += inb(ioaddr + 5); | |
1025 | dev->stats.tx_packets += inb(ioaddr + 6); | |
1da177e4 LT |
1026 | /* Rx packets */ inb(ioaddr + 7); |
1027 | /* Tx deferrals */ inb(ioaddr + 8); | |
1028 | inw(ioaddr + 10); /* Total Rx and Tx octets. */ | |
1029 | inw(ioaddr + 12); | |
1030 | ||
1031 | /* Back to window 1, and turn statistics back on. */ | |
1032 | EL3WINDOW(1); | |
1033 | outw(StatsEnable, ioaddr + EL3_CMD); | |
1034 | return; | |
1035 | } | |
1036 | ||
1037 | static int | |
1038 | el3_rx(struct net_device *dev) | |
1039 | { | |
1da177e4 LT |
1040 | int ioaddr = dev->base_addr; |
1041 | short rx_status; | |
1042 | ||
1043 | if (el3_debug > 5) | |
1044 | printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n", | |
1045 | inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS)); | |
1046 | while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) { | |
1047 | if (rx_status & 0x4000) { /* Error, update stats. */ | |
1048 | short error = rx_status & 0x3800; | |
1049 | ||
1050 | outw(RxDiscard, ioaddr + EL3_CMD); | |
815f8802 | 1051 | dev->stats.rx_errors++; |
1da177e4 | 1052 | switch (error) { |
815f8802 PZ |
1053 | case 0x0000: dev->stats.rx_over_errors++; break; |
1054 | case 0x0800: dev->stats.rx_length_errors++; break; | |
1055 | case 0x1000: dev->stats.rx_frame_errors++; break; | |
1056 | case 0x1800: dev->stats.rx_length_errors++; break; | |
1057 | case 0x2000: dev->stats.rx_frame_errors++; break; | |
1058 | case 0x2800: dev->stats.rx_crc_errors++; break; | |
1da177e4 LT |
1059 | } |
1060 | } else { | |
1061 | short pkt_len = rx_status & 0x7ff; | |
1062 | struct sk_buff *skb; | |
1063 | ||
1064 | skb = dev_alloc_skb(pkt_len+5); | |
1da177e4 LT |
1065 | if (el3_debug > 4) |
1066 | printk("Receiving packet size %d status %4.4x.\n", | |
1067 | pkt_len, rx_status); | |
1068 | if (skb != NULL) { | |
1da177e4 LT |
1069 | skb_reserve(skb, 2); /* Align IP on 16 byte */ |
1070 | ||
1071 | /* 'skb->data' points to the start of sk_buff data area. */ | |
1da177e4 LT |
1072 | insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len), |
1073 | (pkt_len + 3) >> 2); | |
1da177e4 LT |
1074 | |
1075 | outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ | |
1076 | skb->protocol = eth_type_trans(skb,dev); | |
1077 | netif_rx(skb); | |
1078 | dev->last_rx = jiffies; | |
f7f312a0 | 1079 | dev->stats.rx_bytes += pkt_len; |
815f8802 | 1080 | dev->stats.rx_packets++; |
1da177e4 LT |
1081 | continue; |
1082 | } | |
1083 | outw(RxDiscard, ioaddr + EL3_CMD); | |
815f8802 | 1084 | dev->stats.rx_dropped++; |
1da177e4 LT |
1085 | if (el3_debug) |
1086 | printk("%s: Couldn't allocate a sk_buff of size %d.\n", | |
1087 | dev->name, pkt_len); | |
1088 | } | |
1089 | inw(ioaddr + EL3_STATUS); /* Delay. */ | |
1090 | while (inw(ioaddr + EL3_STATUS) & 0x1000) | |
1091 | printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n", | |
1092 | inw(ioaddr + EL3_STATUS) ); | |
1093 | } | |
1094 | ||
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | /* | |
1099 | * Set or clear the multicast filter for this adaptor. | |
1100 | */ | |
1101 | static void | |
1102 | set_multicast_list(struct net_device *dev) | |
1103 | { | |
1104 | unsigned long flags; | |
1105 | struct el3_private *lp = netdev_priv(dev); | |
1106 | int ioaddr = dev->base_addr; | |
1107 | ||
1108 | if (el3_debug > 1) { | |
1109 | static int old; | |
1110 | if (old != dev->mc_count) { | |
1111 | old = dev->mc_count; | |
1112 | printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count); | |
1113 | } | |
1114 | } | |
1115 | spin_lock_irqsave(&lp->lock, flags); | |
1116 | if (dev->flags&IFF_PROMISC) { | |
1117 | outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm, | |
1118 | ioaddr + EL3_CMD); | |
1119 | } | |
1120 | else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) { | |
1121 | outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD); | |
1122 | } | |
1123 | else | |
1124 | outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); | |
1125 | spin_unlock_irqrestore(&lp->lock, flags); | |
1126 | } | |
1127 | ||
1128 | static int | |
1129 | el3_close(struct net_device *dev) | |
1130 | { | |
1131 | int ioaddr = dev->base_addr; | |
1132 | struct el3_private *lp = netdev_priv(dev); | |
6aa20a22 | 1133 | |
1da177e4 LT |
1134 | if (el3_debug > 2) |
1135 | printk("%s: Shutting down ethercard.\n", dev->name); | |
1136 | ||
1137 | el3_down(dev); | |
1138 | ||
1139 | free_irq(dev->irq, dev); | |
1140 | /* Switching back to window 0 disables the IRQ. */ | |
1141 | EL3WINDOW(0); | |
1142 | if (lp->type != EL3_EISA) { | |
1143 | /* But we explicitly zero the IRQ line select anyway. Don't do | |
1144 | * it on EISA cards, it prevents the module from getting an | |
1145 | * IRQ after unload+reload... */ | |
1146 | outw(0x0f00, ioaddr + WN0_IRQ); | |
1147 | } | |
1148 | ||
1149 | return 0; | |
1150 | } | |
1151 | ||
6aa20a22 | 1152 | static int |
1da177e4 LT |
1153 | el3_link_ok(struct net_device *dev) |
1154 | { | |
1155 | int ioaddr = dev->base_addr; | |
1156 | u16 tmp; | |
1157 | ||
1158 | EL3WINDOW(4); | |
1159 | tmp = inw(ioaddr + WN4_MEDIA); | |
1160 | EL3WINDOW(1); | |
1161 | return tmp & (1<<11); | |
1162 | } | |
1163 | ||
1164 | static int | |
1165 | el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1166 | { | |
1167 | u16 tmp; | |
1168 | int ioaddr = dev->base_addr; | |
6aa20a22 | 1169 | |
1da177e4 | 1170 | EL3WINDOW(0); |
6aa20a22 | 1171 | /* obtain current transceiver via WN4_MEDIA? */ |
1da177e4 LT |
1172 | tmp = inw(ioaddr + WN0_ADDR_CONF); |
1173 | ecmd->transceiver = XCVR_INTERNAL; | |
1174 | switch (tmp >> 14) { | |
1175 | case 0: | |
1176 | ecmd->port = PORT_TP; | |
1177 | break; | |
1178 | case 1: | |
1179 | ecmd->port = PORT_AUI; | |
1180 | ecmd->transceiver = XCVR_EXTERNAL; | |
1181 | break; | |
1182 | case 3: | |
1183 | ecmd->port = PORT_BNC; | |
1184 | default: | |
1185 | break; | |
1186 | } | |
1187 | ||
1188 | ecmd->duplex = DUPLEX_HALF; | |
1189 | ecmd->supported = 0; | |
1190 | tmp = inw(ioaddr + WN0_CONF_CTRL); | |
1191 | if (tmp & (1<<13)) | |
1192 | ecmd->supported |= SUPPORTED_AUI; | |
1193 | if (tmp & (1<<12)) | |
1194 | ecmd->supported |= SUPPORTED_BNC; | |
1195 | if (tmp & (1<<9)) { | |
1196 | ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | | |
1197 | SUPPORTED_10baseT_Full; /* hmm... */ | |
1198 | EL3WINDOW(4); | |
1199 | tmp = inw(ioaddr + WN4_NETDIAG); | |
1200 | if (tmp & FD_ENABLE) | |
1201 | ecmd->duplex = DUPLEX_FULL; | |
1202 | } | |
1203 | ||
1204 | ecmd->speed = SPEED_10; | |
1205 | EL3WINDOW(1); | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | static int | |
1210 | el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1211 | { | |
1212 | u16 tmp; | |
1213 | int ioaddr = dev->base_addr; | |
1214 | ||
1215 | if (ecmd->speed != SPEED_10) | |
1216 | return -EINVAL; | |
1217 | if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL)) | |
1218 | return -EINVAL; | |
1219 | if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL)) | |
1220 | return -EINVAL; | |
1221 | ||
1222 | /* change XCVR type */ | |
1223 | EL3WINDOW(0); | |
1224 | tmp = inw(ioaddr + WN0_ADDR_CONF); | |
1225 | switch (ecmd->port) { | |
1226 | case PORT_TP: | |
1227 | tmp &= ~(3<<14); | |
1228 | dev->if_port = 0; | |
1229 | break; | |
1230 | case PORT_AUI: | |
1231 | tmp |= (1<<14); | |
1232 | dev->if_port = 1; | |
1233 | break; | |
1234 | case PORT_BNC: | |
1235 | tmp |= (3<<14); | |
1236 | dev->if_port = 3; | |
1237 | break; | |
1238 | default: | |
1239 | return -EINVAL; | |
1240 | } | |
1241 | ||
1242 | outw(tmp, ioaddr + WN0_ADDR_CONF); | |
1243 | if (dev->if_port == 3) { | |
1244 | /* fire up the DC-DC convertor if BNC gets enabled */ | |
1245 | tmp = inw(ioaddr + WN0_ADDR_CONF); | |
1246 | if (tmp & (3 << 14)) { | |
1247 | outw(StartCoax, ioaddr + EL3_CMD); | |
1248 | udelay(800); | |
1249 | } else | |
1250 | return -EIO; | |
1251 | } | |
1252 | ||
1253 | EL3WINDOW(4); | |
1254 | tmp = inw(ioaddr + WN4_NETDIAG); | |
1255 | if (ecmd->duplex == DUPLEX_FULL) | |
1256 | tmp |= FD_ENABLE; | |
1257 | else | |
1258 | tmp &= ~FD_ENABLE; | |
1259 | outw(tmp, ioaddr + WN4_NETDIAG); | |
1260 | EL3WINDOW(1); | |
1261 | ||
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1266 | { | |
1267 | strcpy(info->driver, DRV_NAME); | |
1268 | strcpy(info->version, DRV_VERSION); | |
1269 | } | |
1270 | ||
1271 | static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1272 | { | |
1273 | struct el3_private *lp = netdev_priv(dev); | |
1274 | int ret; | |
1275 | ||
1276 | spin_lock_irq(&lp->lock); | |
1277 | ret = el3_netdev_get_ecmd(dev, ecmd); | |
1278 | spin_unlock_irq(&lp->lock); | |
1279 | return ret; | |
1280 | } | |
1281 | ||
1282 | static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1283 | { | |
1284 | struct el3_private *lp = netdev_priv(dev); | |
1285 | int ret; | |
1286 | ||
1287 | spin_lock_irq(&lp->lock); | |
1288 | ret = el3_netdev_set_ecmd(dev, ecmd); | |
1289 | spin_unlock_irq(&lp->lock); | |
1290 | return ret; | |
1291 | } | |
1292 | ||
1293 | static u32 el3_get_link(struct net_device *dev) | |
1294 | { | |
1295 | struct el3_private *lp = netdev_priv(dev); | |
1296 | u32 ret; | |
1297 | ||
1298 | spin_lock_irq(&lp->lock); | |
1299 | ret = el3_link_ok(dev); | |
1300 | spin_unlock_irq(&lp->lock); | |
1301 | return ret; | |
1302 | } | |
1303 | ||
1304 | static u32 el3_get_msglevel(struct net_device *dev) | |
1305 | { | |
1306 | return el3_debug; | |
1307 | } | |
1308 | ||
1309 | static void el3_set_msglevel(struct net_device *dev, u32 v) | |
1310 | { | |
1311 | el3_debug = v; | |
1312 | } | |
1313 | ||
7282d491 | 1314 | static const struct ethtool_ops ethtool_ops = { |
1da177e4 LT |
1315 | .get_drvinfo = el3_get_drvinfo, |
1316 | .get_settings = el3_get_settings, | |
1317 | .set_settings = el3_set_settings, | |
1318 | .get_link = el3_get_link, | |
1319 | .get_msglevel = el3_get_msglevel, | |
1320 | .set_msglevel = el3_set_msglevel, | |
1321 | }; | |
1322 | ||
1323 | static void | |
1324 | el3_down(struct net_device *dev) | |
1325 | { | |
1326 | int ioaddr = dev->base_addr; | |
1327 | ||
1328 | netif_stop_queue(dev); | |
1329 | ||
1330 | /* Turn off statistics ASAP. We update lp->stats below. */ | |
1331 | outw(StatsDisable, ioaddr + EL3_CMD); | |
1332 | ||
1333 | /* Disable the receiver and transmitter. */ | |
1334 | outw(RxDisable, ioaddr + EL3_CMD); | |
1335 | outw(TxDisable, ioaddr + EL3_CMD); | |
1336 | ||
1337 | if (dev->if_port == 3) | |
1338 | /* Turn off thinnet power. Green! */ | |
1339 | outw(StopCoax, ioaddr + EL3_CMD); | |
1340 | else if (dev->if_port == 0) { | |
1341 | /* Disable link beat and jabber, if_port may change here next open(). */ | |
1342 | EL3WINDOW(4); | |
1343 | outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA); | |
1344 | } | |
1345 | ||
1346 | outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD); | |
1347 | ||
1348 | update_stats(dev); | |
1349 | } | |
1350 | ||
1351 | static void | |
1352 | el3_up(struct net_device *dev) | |
1353 | { | |
1354 | int i, sw_info, net_diag; | |
1355 | int ioaddr = dev->base_addr; | |
6aa20a22 | 1356 | |
1da177e4 LT |
1357 | /* Activating the board required and does no harm otherwise */ |
1358 | outw(0x0001, ioaddr + 4); | |
1359 | ||
1360 | /* Set the IRQ line. */ | |
1361 | outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ); | |
1362 | ||
1363 | /* Set the station address in window 2 each time opened. */ | |
1364 | EL3WINDOW(2); | |
1365 | ||
1366 | for (i = 0; i < 6; i++) | |
1367 | outb(dev->dev_addr[i], ioaddr + i); | |
1368 | ||
1369 | if ((dev->if_port & 0x03) == 3) /* BNC interface */ | |
1370 | /* Start the thinnet transceiver. We should really wait 50ms...*/ | |
1371 | outw(StartCoax, ioaddr + EL3_CMD); | |
1372 | else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */ | |
1373 | /* Combine secondary sw_info word (the adapter level) and primary | |
1374 | sw_info word (duplex setting plus other useless bits) */ | |
1375 | EL3WINDOW(0); | |
6aa20a22 | 1376 | sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) | |
1da177e4 LT |
1377 | (read_eeprom(ioaddr, 0x0d) & 0xBff0); |
1378 | ||
1379 | EL3WINDOW(4); | |
1380 | net_diag = inw(ioaddr + WN4_NETDIAG); | |
1381 | net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */ | |
1382 | printk("%s: ", dev->name); | |
1383 | switch (dev->if_port & 0x0c) { | |
1384 | case 12: | |
1385 | /* force full-duplex mode if 3c5x9b */ | |
1386 | if (sw_info & 0x000f) { | |
1387 | printk("Forcing 3c5x9b full-duplex mode"); | |
1388 | break; | |
1389 | } | |
1390 | case 8: | |
1391 | /* set full-duplex mode based on eeprom config setting */ | |
1392 | if ((sw_info & 0x000f) && (sw_info & 0x8000)) { | |
1393 | printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)"); | |
1394 | break; | |
1395 | } | |
1396 | default: | |
1397 | /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */ | |
1398 | printk("Setting 3c5x9/3c5x9B half-duplex mode"); | |
1399 | net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */ | |
1400 | } | |
1401 | ||
1402 | outw(net_diag, ioaddr + WN4_NETDIAG); | |
1403 | printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info); | |
1404 | if (el3_debug > 3) | |
1405 | printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag); | |
1406 | /* Enable link beat and jabber check. */ | |
1407 | outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA); | |
1408 | } | |
1409 | ||
1410 | /* Switch to the stats window, and clear all stats by reading. */ | |
1411 | outw(StatsDisable, ioaddr + EL3_CMD); | |
1412 | EL3WINDOW(6); | |
1413 | for (i = 0; i < 9; i++) | |
1414 | inb(ioaddr + i); | |
1415 | inw(ioaddr + 10); | |
1416 | inw(ioaddr + 12); | |
1417 | ||
1418 | /* Switch to register set 1 for normal use. */ | |
1419 | EL3WINDOW(1); | |
1420 | ||
1421 | /* Accept b-case and phys addr only. */ | |
1422 | outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); | |
1423 | outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ | |
1424 | ||
1425 | outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ | |
1426 | outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ | |
1427 | /* Allow status bits to be seen. */ | |
1428 | outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); | |
1429 | /* Ack all pending events, and set active indicator mask. */ | |
1430 | outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, | |
1431 | ioaddr + EL3_CMD); | |
1432 | outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull, | |
1433 | ioaddr + EL3_CMD); | |
1434 | ||
1435 | netif_start_queue(dev); | |
1436 | } | |
1437 | ||
1438 | /* Power Management support functions */ | |
ac4bed13 | 1439 | #ifdef CONFIG_PM |
1da177e4 LT |
1440 | |
1441 | static int | |
60a89ff6 | 1442 | el3_suspend(struct device *pdev, pm_message_t state) |
1da177e4 LT |
1443 | { |
1444 | unsigned long flags; | |
1445 | struct net_device *dev; | |
1446 | struct el3_private *lp; | |
1447 | int ioaddr; | |
6aa20a22 | 1448 | |
60a89ff6 | 1449 | dev = pdev->driver_data; |
1da177e4 LT |
1450 | lp = netdev_priv(dev); |
1451 | ioaddr = dev->base_addr; | |
1452 | ||
1453 | spin_lock_irqsave(&lp->lock, flags); | |
1454 | ||
1455 | if (netif_running(dev)) | |
1456 | netif_device_detach(dev); | |
1457 | ||
1458 | el3_down(dev); | |
1459 | outw(PowerDown, ioaddr + EL3_CMD); | |
1460 | ||
1461 | spin_unlock_irqrestore(&lp->lock, flags); | |
1462 | return 0; | |
1463 | } | |
1464 | ||
1465 | static int | |
60a89ff6 | 1466 | el3_resume(struct device *pdev) |
1da177e4 LT |
1467 | { |
1468 | unsigned long flags; | |
1469 | struct net_device *dev; | |
1470 | struct el3_private *lp; | |
1471 | int ioaddr; | |
6aa20a22 | 1472 | |
60a89ff6 | 1473 | dev = pdev->driver_data; |
1da177e4 LT |
1474 | lp = netdev_priv(dev); |
1475 | ioaddr = dev->base_addr; | |
1476 | ||
1477 | spin_lock_irqsave(&lp->lock, flags); | |
1478 | ||
1479 | outw(PowerUp, ioaddr + EL3_CMD); | |
1480 | el3_up(dev); | |
1481 | ||
1482 | if (netif_running(dev)) | |
1483 | netif_device_attach(dev); | |
6aa20a22 | 1484 | |
1da177e4 LT |
1485 | spin_unlock_irqrestore(&lp->lock, flags); |
1486 | return 0; | |
1487 | } | |
1488 | ||
ac4bed13 | 1489 | #endif /* CONFIG_PM */ |
1da177e4 LT |
1490 | |
1491 | module_param(debug,int, 0); | |
1492 | module_param_array(irq, int, NULL, 0); | |
1da177e4 LT |
1493 | module_param(max_interrupt_work, int, 0); |
1494 | MODULE_PARM_DESC(debug, "debug level (0-6)"); | |
1495 | MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); | |
1da177e4 | 1496 | MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt"); |
ac4bed13 | 1497 | #ifdef CONFIG_PNP |
1da177e4 LT |
1498 | module_param(nopnp, int, 0); |
1499 | MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)"); | |
ac4bed13 OZ |
1500 | #endif /* CONFIG_PNP */ |
1501 | MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B, 3c529, 3c579) ethernet driver"); | |
1da177e4 LT |
1502 | MODULE_LICENSE("GPL"); |
1503 | ||
1504 | static int __init el3_init_module(void) | |
1505 | { | |
0992a5d0 | 1506 | int ret = 0; |
1da177e4 LT |
1507 | |
1508 | if (debug >= 0) | |
1509 | el3_debug = debug; | |
1510 | ||
ac4bed13 OZ |
1511 | #ifdef CONFIG_PNP |
1512 | if (!nopnp) { | |
1513 | ret = pnp_register_driver(&el3_pnp_driver); | |
1514 | if (!ret) | |
1515 | pnp_registered = 1; | |
1516 | } | |
1517 | #endif | |
1518 | /* Select an open I/O location at 0x1*0 to do ISA contention select. */ | |
1519 | /* Start with 0x110 to avoid some sound cards.*/ | |
1520 | for (id_port = 0x110 ; id_port < 0x200; id_port += 0x10) { | |
1521 | if (!request_region(id_port, 1, "3c509-control")) | |
1522 | continue; | |
1523 | outb(0x00, id_port); | |
1524 | outb(0xff, id_port); | |
1525 | if (inb(id_port) & 0x01) | |
1526 | break; | |
1527 | else | |
1528 | release_region(id_port, 1); | |
1529 | } | |
1530 | if (id_port >= 0x200) { | |
1531 | id_port = 0; | |
1532 | printk(KERN_ERR "No I/O port available for 3c509 activation.\n"); | |
1533 | } else { | |
1534 | ret = isa_register_driver(&el3_isa_driver, EL3_MAX_CARDS); | |
1535 | if (!ret) | |
1536 | isa_registered = 1; | |
1da177e4 | 1537 | } |
1da177e4 | 1538 | #ifdef CONFIG_EISA |
0992a5d0 | 1539 | ret = eisa_driver_register(&el3_eisa_driver); |
ac4bed13 OZ |
1540 | if (!ret) |
1541 | eisa_registered = 1; | |
1da177e4 LT |
1542 | #endif |
1543 | #ifdef CONFIG_MCA | |
ac4bed13 OZ |
1544 | ret = mca_register_driver(&el3_mca_driver); |
1545 | if (!ret) | |
1546 | mca_registered = 1; | |
1547 | #endif | |
1548 | ||
1549 | #ifdef CONFIG_PNP | |
1550 | if (pnp_registered) | |
1551 | ret = 0; | |
1552 | #endif | |
1553 | if (isa_registered) | |
1554 | ret = 0; | |
1555 | #ifdef CONFIG_EISA | |
1556 | if (eisa_registered) | |
1557 | ret = 0; | |
1558 | #endif | |
1559 | #ifdef CONFIG_MCA | |
1560 | if (mca_registered) | |
1561 | ret = 0; | |
1da177e4 | 1562 | #endif |
0992a5d0 | 1563 | return ret; |
1da177e4 LT |
1564 | } |
1565 | ||
1566 | static void __exit el3_cleanup_module(void) | |
1567 | { | |
ac4bed13 OZ |
1568 | #ifdef CONFIG_PNP |
1569 | if (pnp_registered) | |
1570 | pnp_unregister_driver(&el3_pnp_driver); | |
1571 | #endif | |
1572 | if (isa_registered) | |
1573 | isa_unregister_driver(&el3_isa_driver); | |
1574 | if (id_port) | |
1575 | release_region(id_port, 1); | |
1da177e4 | 1576 | #ifdef CONFIG_EISA |
ac4bed13 OZ |
1577 | if (eisa_registered) |
1578 | eisa_driver_unregister(&el3_eisa_driver); | |
1da177e4 LT |
1579 | #endif |
1580 | #ifdef CONFIG_MCA | |
ac4bed13 OZ |
1581 | if (mca_registered) |
1582 | mca_unregister_driver(&el3_mca_driver); | |
1da177e4 LT |
1583 | #endif |
1584 | } | |
1585 | ||
1586 | module_init (el3_init_module); | |
1587 | module_exit (el3_cleanup_module); |