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1da177e4 LT |
1 | /* orinoco_cs.c (formerly known as dldwd_cs.c) |
2 | * | |
3 | * A driver for "Hermes" chipset based PCMCIA wireless adaptors, such | |
4 | * as the Lucent WavelanIEEE/Orinoco cards and their OEM (Cabletron/ | |
5 | * EnteraSys RoamAbout 802.11, ELSA Airlancer, Melco Buffalo and others). | |
6 | * It should also be usable on various Prism II based cards such as the | |
7 | * Linksys, D-Link and Farallon Skyline. It should also work on Symbol | |
8 | * cards such as the 3Com AirConnect and Ericsson WLAN. | |
9 | * | |
10 | * Copyright notice & release notes in file orinoco.c | |
11 | */ | |
12 | ||
13 | #define DRIVER_NAME "orinoco_cs" | |
14 | #define PFX DRIVER_NAME ": " | |
15 | ||
16 | #include <linux/config.h> | |
17 | #ifdef __IN_PCMCIA_PACKAGE__ | |
18 | #include <pcmcia/k_compat.h> | |
19 | #endif /* __IN_PCMCIA_PACKAGE__ */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/kernel.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/sched.h> | |
25 | #include <linux/ptrace.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/string.h> | |
28 | #include <linux/ioport.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/if_arp.h> | |
31 | #include <linux/etherdevice.h> | |
32 | #include <linux/wireless.h> | |
33 | ||
34 | #include <pcmcia/version.h> | |
35 | #include <pcmcia/cs_types.h> | |
36 | #include <pcmcia/cs.h> | |
37 | #include <pcmcia/cistpl.h> | |
38 | #include <pcmcia/cisreg.h> | |
39 | #include <pcmcia/ds.h> | |
40 | ||
41 | #include <asm/uaccess.h> | |
42 | #include <asm/io.h> | |
43 | #include <asm/system.h> | |
44 | ||
45 | #include "orinoco.h" | |
46 | ||
47 | /********************************************************************/ | |
48 | /* Module stuff */ | |
49 | /********************************************************************/ | |
50 | ||
51 | MODULE_AUTHOR("David Gibson <hermes@gibson.dropbear.id.au>"); | |
52 | MODULE_DESCRIPTION("Driver for PCMCIA Lucent Orinoco, Prism II based and similar wireless cards"); | |
53 | MODULE_LICENSE("Dual MPL/GPL"); | |
54 | ||
55 | /* Module parameters */ | |
56 | ||
57 | /* Some D-Link cards have buggy CIS. They do work at 5v properly, but | |
58 | * don't have any CIS entry for it. This workaround it... */ | |
59 | static int ignore_cis_vcc; /* = 0 */ | |
60 | module_param(ignore_cis_vcc, int, 0); | |
61 | MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket"); | |
62 | ||
63 | /********************************************************************/ | |
64 | /* Magic constants */ | |
65 | /********************************************************************/ | |
66 | ||
67 | /* | |
68 | * The dev_info variable is the "key" that is used to match up this | |
69 | * device driver with appropriate cards, through the card | |
70 | * configuration database. | |
71 | */ | |
72 | static dev_info_t dev_info = DRIVER_NAME; | |
73 | ||
74 | /********************************************************************/ | |
75 | /* Data structures */ | |
76 | /********************************************************************/ | |
77 | ||
78 | /* PCMCIA specific device information (goes in the card field of | |
79 | * struct orinoco_private */ | |
80 | struct orinoco_pccard { | |
81 | dev_link_t link; | |
82 | dev_node_t node; | |
83 | ||
84 | /* Used to handle hard reset */ | |
85 | /* yuck, we need this hack to work around the insanity of the | |
86 | * PCMCIA layer */ | |
87 | unsigned long hard_reset_in_progress; | |
88 | }; | |
89 | ||
90 | /* | |
91 | * A linked list of "instances" of the device. Each actual PCMCIA | |
92 | * card corresponds to one device instance, and is described by one | |
93 | * dev_link_t structure (defined in ds.h). | |
94 | */ | |
95 | static dev_link_t *dev_list; /* = NULL */ | |
96 | ||
97 | /********************************************************************/ | |
98 | /* Function prototypes */ | |
99 | /********************************************************************/ | |
100 | ||
101 | /* device methods */ | |
102 | static int orinoco_cs_hard_reset(struct orinoco_private *priv); | |
103 | ||
104 | /* PCMCIA gumpf */ | |
105 | static void orinoco_cs_config(dev_link_t * link); | |
106 | static void orinoco_cs_release(dev_link_t * link); | |
107 | static int orinoco_cs_event(event_t event, int priority, | |
108 | event_callback_args_t * args); | |
109 | ||
110 | static dev_link_t *orinoco_cs_attach(void); | |
111 | static void orinoco_cs_detach(dev_link_t *); | |
112 | ||
113 | /********************************************************************/ | |
114 | /* Device methods */ | |
115 | /********************************************************************/ | |
116 | ||
117 | static int | |
118 | orinoco_cs_hard_reset(struct orinoco_private *priv) | |
119 | { | |
120 | struct orinoco_pccard *card = priv->card; | |
121 | dev_link_t *link = &card->link; | |
122 | int err; | |
123 | ||
124 | /* We need atomic ops here, because we're not holding the lock */ | |
125 | set_bit(0, &card->hard_reset_in_progress); | |
126 | ||
127 | err = pcmcia_reset_card(link->handle, NULL); | |
128 | if (err) | |
129 | return err; | |
130 | ||
131 | msleep(100); | |
132 | clear_bit(0, &card->hard_reset_in_progress); | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | /********************************************************************/ | |
138 | /* PCMCIA stuff */ | |
139 | /********************************************************************/ | |
140 | ||
141 | /* | |
142 | * This creates an "instance" of the driver, allocating local data | |
143 | * structures for one device. The device is registered with Card | |
144 | * Services. | |
145 | * | |
146 | * The dev_link structure is initialized, but we don't actually | |
147 | * configure the card at this point -- we wait until we receive a card | |
148 | * insertion event. */ | |
149 | static dev_link_t * | |
150 | orinoco_cs_attach(void) | |
151 | { | |
152 | struct net_device *dev; | |
153 | struct orinoco_private *priv; | |
154 | struct orinoco_pccard *card; | |
155 | dev_link_t *link; | |
156 | client_reg_t client_reg; | |
157 | int ret; | |
158 | ||
159 | dev = alloc_orinocodev(sizeof(*card), orinoco_cs_hard_reset); | |
160 | if (! dev) | |
161 | return NULL; | |
162 | priv = netdev_priv(dev); | |
163 | card = priv->card; | |
164 | ||
165 | /* Link both structures together */ | |
166 | link = &card->link; | |
167 | link->priv = dev; | |
168 | ||
169 | /* Interrupt setup */ | |
170 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
171 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
172 | link->irq.Handler = orinoco_interrupt; | |
173 | link->irq.Instance = dev; | |
174 | ||
175 | /* General socket configuration defaults can go here. In this | |
176 | * client, we assume very little, and rely on the CIS for | |
177 | * almost everything. In most clients, many details (i.e., | |
178 | * number, sizes, and attributes of IO windows) are fixed by | |
179 | * the nature of the device, and can be hard-wired here. */ | |
180 | link->conf.Attributes = 0; | |
181 | link->conf.IntType = INT_MEMORY_AND_IO; | |
182 | ||
183 | /* Register with Card Services */ | |
184 | /* FIXME: need a lock? */ | |
185 | link->next = dev_list; | |
186 | dev_list = link; | |
187 | ||
188 | client_reg.dev_info = &dev_info; | |
189 | client_reg.EventMask = | |
190 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
191 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
192 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; | |
193 | client_reg.event_handler = &orinoco_cs_event; | |
194 | client_reg.Version = 0x0210; /* FIXME: what does this mean? */ | |
195 | client_reg.event_callback_args.client_data = link; | |
196 | ||
197 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
198 | if (ret != CS_SUCCESS) { | |
199 | cs_error(link->handle, RegisterClient, ret); | |
200 | orinoco_cs_detach(link); | |
201 | return NULL; | |
202 | } | |
203 | ||
204 | return link; | |
205 | } /* orinoco_cs_attach */ | |
206 | ||
207 | /* | |
208 | * This deletes a driver "instance". The device is de-registered with | |
209 | * Card Services. If it has been released, all local data structures | |
210 | * are freed. Otherwise, the structures will be freed when the device | |
211 | * is released. | |
212 | */ | |
213 | static void orinoco_cs_detach(dev_link_t *link) | |
214 | { | |
215 | dev_link_t **linkp; | |
216 | struct net_device *dev = link->priv; | |
217 | ||
218 | /* Locate device structure */ | |
219 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) | |
220 | if (*linkp == link) | |
221 | break; | |
222 | ||
223 | BUG_ON(*linkp == NULL); | |
224 | ||
225 | if (link->state & DEV_CONFIG) | |
226 | orinoco_cs_release(link); | |
227 | ||
228 | /* Break the link with Card Services */ | |
229 | if (link->handle) | |
230 | pcmcia_deregister_client(link->handle); | |
231 | ||
232 | /* Unlink device structure, and free it */ | |
233 | *linkp = link->next; | |
234 | DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev); | |
235 | if (link->dev) { | |
236 | DEBUG(0, PFX "About to unregister net device %p\n", | |
237 | dev); | |
238 | unregister_netdev(dev); | |
239 | } | |
240 | free_orinocodev(dev); | |
241 | } /* orinoco_cs_detach */ | |
242 | ||
243 | /* | |
244 | * orinoco_cs_config() is scheduled to run after a CARD_INSERTION | |
245 | * event is received, to configure the PCMCIA socket, and to make the | |
246 | * device available to the system. | |
247 | */ | |
248 | ||
249 | #define CS_CHECK(fn, ret) do { \ | |
250 | last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; \ | |
251 | } while (0) | |
252 | ||
253 | static void | |
254 | orinoco_cs_config(dev_link_t *link) | |
255 | { | |
256 | struct net_device *dev = link->priv; | |
257 | client_handle_t handle = link->handle; | |
258 | struct orinoco_private *priv = netdev_priv(dev); | |
259 | struct orinoco_pccard *card = priv->card; | |
260 | hermes_t *hw = &priv->hw; | |
261 | int last_fn, last_ret; | |
262 | u_char buf[64]; | |
263 | config_info_t conf; | |
264 | cisinfo_t info; | |
265 | tuple_t tuple; | |
266 | cisparse_t parse; | |
267 | void __iomem *mem; | |
268 | ||
269 | CS_CHECK(ValidateCIS, pcmcia_validate_cis(handle, &info)); | |
270 | ||
271 | /* | |
272 | * This reads the card's CONFIG tuple to find its | |
273 | * configuration registers. | |
274 | */ | |
275 | tuple.DesiredTuple = CISTPL_CONFIG; | |
276 | tuple.Attributes = 0; | |
277 | tuple.TupleData = buf; | |
278 | tuple.TupleDataMax = sizeof(buf); | |
279 | tuple.TupleOffset = 0; | |
280 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
281 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); | |
282 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); | |
283 | link->conf.ConfigBase = parse.config.base; | |
284 | link->conf.Present = parse.config.rmask[0]; | |
285 | ||
286 | /* Configure card */ | |
287 | link->state |= DEV_CONFIG; | |
288 | ||
289 | /* Look up the current Vcc */ | |
290 | CS_CHECK(GetConfigurationInfo, | |
291 | pcmcia_get_configuration_info(handle, &conf)); | |
292 | link->conf.Vcc = conf.Vcc; | |
293 | ||
294 | /* | |
295 | * In this loop, we scan the CIS for configuration table | |
296 | * entries, each of which describes a valid card | |
297 | * configuration, including voltage, IO window, memory window, | |
298 | * and interrupt settings. | |
299 | * | |
300 | * We make no assumptions about the card to be configured: we | |
301 | * use just the information available in the CIS. In an ideal | |
302 | * world, this would work for any PCMCIA card, but it requires | |
303 | * a complete and accurate CIS. In practice, a driver usually | |
304 | * "knows" most of these things without consulting the CIS, | |
305 | * and most client drivers will only use the CIS to fill in | |
306 | * implementation-defined details. | |
307 | */ | |
308 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
309 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
310 | while (1) { | |
311 | cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); | |
312 | cistpl_cftable_entry_t dflt = { .index = 0 }; | |
313 | ||
314 | if ( (pcmcia_get_tuple_data(handle, &tuple) != 0) | |
315 | || (pcmcia_parse_tuple(handle, &tuple, &parse) != 0)) | |
316 | goto next_entry; | |
317 | ||
318 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) | |
319 | dflt = *cfg; | |
320 | if (cfg->index == 0) | |
321 | goto next_entry; | |
322 | link->conf.ConfigIndex = cfg->index; | |
323 | ||
324 | /* Does this card need audio output? */ | |
325 | if (cfg->flags & CISTPL_CFTABLE_AUDIO) { | |
326 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
327 | link->conf.Status = CCSR_AUDIO_ENA; | |
328 | } | |
329 | ||
330 | /* Use power settings for Vcc and Vpp if present */ | |
331 | /* Note that the CIS values need to be rescaled */ | |
332 | if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { | |
333 | if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) { | |
334 | DEBUG(2, "orinoco_cs_config: Vcc mismatch (conf.Vcc = %d, CIS = %d)\n", conf.Vcc, cfg->vcc.param[CISTPL_POWER_VNOM] / 10000); | |
335 | if (!ignore_cis_vcc) | |
336 | goto next_entry; | |
337 | } | |
338 | } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) { | |
339 | if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] / 10000) { | |
340 | DEBUG(2, "orinoco_cs_config: Vcc mismatch (conf.Vcc = %d, CIS = %d)\n", conf.Vcc, dflt.vcc.param[CISTPL_POWER_VNOM] / 10000); | |
341 | if(!ignore_cis_vcc) | |
342 | goto next_entry; | |
343 | } | |
344 | } | |
345 | ||
346 | if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
347 | link->conf.Vpp1 = link->conf.Vpp2 = | |
348 | cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
349 | else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
350 | link->conf.Vpp1 = link->conf.Vpp2 = | |
351 | dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
352 | ||
353 | /* Do we need to allocate an interrupt? */ | |
354 | link->conf.Attributes |= CONF_ENABLE_IRQ; | |
355 | ||
356 | /* IO window settings */ | |
357 | link->io.NumPorts1 = link->io.NumPorts2 = 0; | |
358 | if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { | |
359 | cistpl_io_t *io = | |
360 | (cfg->io.nwin) ? &cfg->io : &dflt.io; | |
361 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
362 | if (!(io->flags & CISTPL_IO_8BIT)) | |
363 | link->io.Attributes1 = | |
364 | IO_DATA_PATH_WIDTH_16; | |
365 | if (!(io->flags & CISTPL_IO_16BIT)) | |
366 | link->io.Attributes1 = | |
367 | IO_DATA_PATH_WIDTH_8; | |
368 | link->io.IOAddrLines = | |
369 | io->flags & CISTPL_IO_LINES_MASK; | |
370 | link->io.BasePort1 = io->win[0].base; | |
371 | link->io.NumPorts1 = io->win[0].len; | |
372 | if (io->nwin > 1) { | |
373 | link->io.Attributes2 = | |
374 | link->io.Attributes1; | |
375 | link->io.BasePort2 = io->win[1].base; | |
376 | link->io.NumPorts2 = io->win[1].len; | |
377 | } | |
378 | ||
379 | /* This reserves IO space but doesn't actually enable it */ | |
380 | if (pcmcia_request_io(link->handle, &link->io) != 0) | |
381 | goto next_entry; | |
382 | } | |
383 | ||
384 | ||
385 | /* If we got this far, we're cool! */ | |
386 | ||
387 | break; | |
388 | ||
389 | next_entry: | |
390 | if (link->io.NumPorts1) | |
391 | pcmcia_release_io(link->handle, &link->io); | |
392 | last_ret = pcmcia_get_next_tuple(handle, &tuple); | |
393 | if (last_ret == CS_NO_MORE_ITEMS) { | |
394 | printk(KERN_ERR PFX "GetNextTuple(): No matching " | |
395 | "CIS configuration. Maybe you need the " | |
396 | "ignore_cis_vcc=1 parameter.\n"); | |
397 | goto cs_failed; | |
398 | } | |
399 | } | |
400 | ||
401 | /* | |
402 | * Allocate an interrupt line. Note that this does not assign | |
403 | * a handler to the interrupt, unless the 'Handler' member of | |
404 | * the irq structure is initialized. | |
405 | */ | |
406 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); | |
407 | ||
408 | /* We initialize the hermes structure before completing PCMCIA | |
409 | * configuration just in case the interrupt handler gets | |
410 | * called. */ | |
411 | mem = ioport_map(link->io.BasePort1, link->io.NumPorts1); | |
412 | if (!mem) | |
413 | goto cs_failed; | |
414 | ||
415 | hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING); | |
416 | ||
417 | /* | |
418 | * This actually configures the PCMCIA socket -- setting up | |
419 | * the I/O windows and the interrupt mapping, and putting the | |
420 | * card and host interface into "Memory and IO" mode. | |
421 | */ | |
422 | CS_CHECK(RequestConfiguration, | |
423 | pcmcia_request_configuration(link->handle, &link->conf)); | |
424 | ||
425 | /* Ok, we have the configuration, prepare to register the netdev */ | |
426 | dev->base_addr = link->io.BasePort1; | |
427 | dev->irq = link->irq.AssignedIRQ; | |
428 | SET_MODULE_OWNER(dev); | |
429 | card->node.major = card->node.minor = 0; | |
430 | ||
431 | SET_NETDEV_DEV(dev, &handle_to_dev(handle)); | |
432 | /* Tell the stack we exist */ | |
433 | if (register_netdev(dev) != 0) { | |
434 | printk(KERN_ERR PFX "register_netdev() failed\n"); | |
435 | goto failed; | |
436 | } | |
437 | ||
438 | /* At this point, the dev_node_t structure(s) needs to be | |
439 | * initialized and arranged in a linked list at link->dev. */ | |
440 | strcpy(card->node.dev_name, dev->name); | |
441 | link->dev = &card->node; /* link->dev being non-NULL is also | |
442 | used to indicate that the | |
443 | net_device has been registered */ | |
444 | link->state &= ~DEV_CONFIG_PENDING; | |
445 | ||
446 | /* Finally, report what we've done */ | |
447 | printk(KERN_DEBUG "%s: index 0x%02x: Vcc %d.%d", | |
448 | dev->name, link->conf.ConfigIndex, | |
449 | link->conf.Vcc / 10, link->conf.Vcc % 10); | |
450 | if (link->conf.Vpp1) | |
451 | printk(", Vpp %d.%d", link->conf.Vpp1 / 10, | |
452 | link->conf.Vpp1 % 10); | |
453 | printk(", irq %d", link->irq.AssignedIRQ); | |
454 | if (link->io.NumPorts1) | |
455 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, | |
456 | link->io.BasePort1 + link->io.NumPorts1 - 1); | |
457 | if (link->io.NumPorts2) | |
458 | printk(" & 0x%04x-0x%04x", link->io.BasePort2, | |
459 | link->io.BasePort2 + link->io.NumPorts2 - 1); | |
460 | printk("\n"); | |
461 | ||
462 | return; | |
463 | ||
464 | cs_failed: | |
465 | cs_error(link->handle, last_fn, last_ret); | |
466 | ||
467 | failed: | |
468 | orinoco_cs_release(link); | |
469 | } /* orinoco_cs_config */ | |
470 | ||
471 | /* | |
472 | * After a card is removed, orinoco_cs_release() will unregister the | |
473 | * device, and release the PCMCIA configuration. If the device is | |
474 | * still open, this will be postponed until it is closed. | |
475 | */ | |
476 | static void | |
477 | orinoco_cs_release(dev_link_t *link) | |
478 | { | |
479 | struct net_device *dev = link->priv; | |
480 | struct orinoco_private *priv = netdev_priv(dev); | |
481 | unsigned long flags; | |
482 | ||
483 | /* We're committed to taking the device away now, so mark the | |
484 | * hardware as unavailable */ | |
485 | spin_lock_irqsave(&priv->lock, flags); | |
486 | priv->hw_unavailable++; | |
487 | spin_unlock_irqrestore(&priv->lock, flags); | |
488 | ||
489 | /* Don't bother checking to see if these succeed or not */ | |
490 | pcmcia_release_configuration(link->handle); | |
491 | if (link->io.NumPorts1) | |
492 | pcmcia_release_io(link->handle, &link->io); | |
493 | if (link->irq.AssignedIRQ) | |
494 | pcmcia_release_irq(link->handle, &link->irq); | |
495 | link->state &= ~DEV_CONFIG; | |
496 | if (priv->hw.iobase) | |
497 | ioport_unmap(priv->hw.iobase); | |
498 | } /* orinoco_cs_release */ | |
499 | ||
500 | /* | |
501 | * The card status event handler. Mostly, this schedules other stuff | |
502 | * to run after an event is received. | |
503 | */ | |
504 | static int | |
505 | orinoco_cs_event(event_t event, int priority, | |
506 | event_callback_args_t * args) | |
507 | { | |
508 | dev_link_t *link = args->client_data; | |
509 | struct net_device *dev = link->priv; | |
510 | struct orinoco_private *priv = netdev_priv(dev); | |
511 | struct orinoco_pccard *card = priv->card; | |
512 | int err = 0; | |
513 | unsigned long flags; | |
514 | ||
515 | switch (event) { | |
516 | case CS_EVENT_CARD_REMOVAL: | |
517 | link->state &= ~DEV_PRESENT; | |
518 | if (link->state & DEV_CONFIG) { | |
519 | unsigned long flags; | |
520 | ||
521 | spin_lock_irqsave(&priv->lock, flags); | |
522 | netif_device_detach(dev); | |
523 | priv->hw_unavailable++; | |
524 | spin_unlock_irqrestore(&priv->lock, flags); | |
525 | } | |
526 | break; | |
527 | ||
528 | case CS_EVENT_CARD_INSERTION: | |
529 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
530 | orinoco_cs_config(link); | |
531 | break; | |
532 | ||
533 | case CS_EVENT_PM_SUSPEND: | |
534 | link->state |= DEV_SUSPEND; | |
535 | /* Fall through... */ | |
536 | case CS_EVENT_RESET_PHYSICAL: | |
537 | /* Mark the device as stopped, to block IO until later */ | |
538 | if (link->state & DEV_CONFIG) { | |
539 | /* This is probably racy, but I can't think of | |
540 | a better way, short of rewriting the PCMCIA | |
541 | layer to not suck :-( */ | |
542 | if (! test_bit(0, &card->hard_reset_in_progress)) { | |
543 | spin_lock_irqsave(&priv->lock, flags); | |
544 | ||
545 | err = __orinoco_down(dev); | |
546 | if (err) | |
547 | printk(KERN_WARNING "%s: %s: Error %d downing interface\n", | |
548 | dev->name, | |
549 | event == CS_EVENT_PM_SUSPEND ? "SUSPEND" : "RESET_PHYSICAL", | |
550 | err); | |
551 | ||
552 | netif_device_detach(dev); | |
553 | priv->hw_unavailable++; | |
554 | ||
555 | spin_unlock_irqrestore(&priv->lock, flags); | |
556 | } | |
557 | ||
558 | pcmcia_release_configuration(link->handle); | |
559 | } | |
560 | break; | |
561 | ||
562 | case CS_EVENT_PM_RESUME: | |
563 | link->state &= ~DEV_SUSPEND; | |
564 | /* Fall through... */ | |
565 | case CS_EVENT_CARD_RESET: | |
566 | if (link->state & DEV_CONFIG) { | |
567 | /* FIXME: should we double check that this is | |
568 | * the same card as we had before */ | |
569 | pcmcia_request_configuration(link->handle, &link->conf); | |
570 | ||
571 | if (! test_bit(0, &card->hard_reset_in_progress)) { | |
572 | err = orinoco_reinit_firmware(dev); | |
573 | if (err) { | |
574 | printk(KERN_ERR "%s: Error %d re-initializing firmware\n", | |
575 | dev->name, err); | |
576 | break; | |
577 | } | |
578 | ||
579 | spin_lock_irqsave(&priv->lock, flags); | |
580 | ||
581 | netif_device_attach(dev); | |
582 | priv->hw_unavailable--; | |
583 | ||
584 | if (priv->open && ! priv->hw_unavailable) { | |
585 | err = __orinoco_up(dev); | |
586 | if (err) | |
587 | printk(KERN_ERR "%s: Error %d restarting card\n", | |
588 | dev->name, err); | |
589 | ||
590 | } | |
591 | ||
592 | spin_unlock_irqrestore(&priv->lock, flags); | |
593 | } | |
594 | } | |
595 | break; | |
596 | } | |
597 | ||
598 | return err; | |
599 | } /* orinoco_cs_event */ | |
600 | ||
601 | /********************************************************************/ | |
602 | /* Module initialization */ | |
603 | /********************************************************************/ | |
604 | ||
605 | /* Can't be declared "const" or the whole __initdata section will | |
606 | * become const */ | |
607 | static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION | |
608 | " (David Gibson <hermes@gibson.dropbear.id.au>, " | |
609 | "Pavel Roskin <proski@gnu.org>, et al)"; | |
610 | ||
611 | static struct pcmcia_driver orinoco_driver = { | |
612 | .owner = THIS_MODULE, | |
613 | .drv = { | |
614 | .name = DRIVER_NAME, | |
615 | }, | |
616 | .attach = orinoco_cs_attach, | |
617 | .detach = orinoco_cs_detach, | |
618 | }; | |
619 | ||
620 | static int __init | |
621 | init_orinoco_cs(void) | |
622 | { | |
623 | printk(KERN_DEBUG "%s\n", version); | |
624 | ||
625 | return pcmcia_register_driver(&orinoco_driver); | |
626 | } | |
627 | ||
628 | static void __exit | |
629 | exit_orinoco_cs(void) | |
630 | { | |
631 | pcmcia_unregister_driver(&orinoco_driver); | |
632 | BUG_ON(dev_list != NULL); | |
633 | } | |
634 | ||
635 | module_init(init_orinoco_cs); | |
636 | module_exit(exit_orinoco_cs); |