aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/orinoco_cs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/orinoco_cs.c')
-rw-r--r--drivers/net/wireless/orinoco_cs.c208
1 files changed, 73 insertions, 135 deletions
diff --git a/drivers/net/wireless/orinoco_cs.c b/drivers/net/wireless/orinoco_cs.c
index dc1128a00971..b664708481cc 100644
--- a/drivers/net/wireless/orinoco_cs.c
+++ b/drivers/net/wireless/orinoco_cs.c
@@ -43,17 +43,6 @@ module_param(ignore_cis_vcc, int, 0);
43MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket"); 43MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket");
44 44
45/********************************************************************/ 45/********************************************************************/
46/* Magic constants */
47/********************************************************************/
48
49/*
50 * The dev_info variable is the "key" that is used to match up this
51 * device driver with appropriate cards, through the card
52 * configuration database.
53 */
54static dev_info_t dev_info = DRIVER_NAME;
55
56/********************************************************************/
57/* Data structures */ 46/* Data structures */
58/********************************************************************/ 47/********************************************************************/
59 48
@@ -69,19 +58,14 @@ struct orinoco_pccard {
69 unsigned long hard_reset_in_progress; 58 unsigned long hard_reset_in_progress;
70}; 59};
71 60
72/*
73 * A linked list of "instances" of the device. Each actual PCMCIA
74 * card corresponds to one device instance, and is described by one
75 * dev_link_t structure (defined in ds.h).
76 */
77static dev_link_t *dev_list; /* = NULL */
78 61
79/********************************************************************/ 62/********************************************************************/
80/* Function prototypes */ 63/* Function prototypes */
81/********************************************************************/ 64/********************************************************************/
82 65
66static void orinoco_cs_config(dev_link_t *link);
83static void orinoco_cs_release(dev_link_t *link); 67static void orinoco_cs_release(dev_link_t *link);
84static void orinoco_cs_detach(dev_link_t *link); 68static void orinoco_cs_detach(struct pcmcia_device *p_dev);
85 69
86/********************************************************************/ 70/********************************************************************/
87/* Device methods */ 71/* Device methods */
@@ -119,19 +103,17 @@ orinoco_cs_hard_reset(struct orinoco_private *priv)
119 * The dev_link structure is initialized, but we don't actually 103 * The dev_link structure is initialized, but we don't actually
120 * configure the card at this point -- we wait until we receive a card 104 * configure the card at this point -- we wait until we receive a card
121 * insertion event. */ 105 * insertion event. */
122static dev_link_t * 106static int
123orinoco_cs_attach(void) 107orinoco_cs_attach(struct pcmcia_device *p_dev)
124{ 108{
125 struct net_device *dev; 109 struct net_device *dev;
126 struct orinoco_private *priv; 110 struct orinoco_private *priv;
127 struct orinoco_pccard *card; 111 struct orinoco_pccard *card;
128 dev_link_t *link; 112 dev_link_t *link;
129 client_reg_t client_reg;
130 int ret;
131 113
132 dev = alloc_orinocodev(sizeof(*card), orinoco_cs_hard_reset); 114 dev = alloc_orinocodev(sizeof(*card), orinoco_cs_hard_reset);
133 if (! dev) 115 if (! dev)
134 return NULL; 116 return -ENOMEM;
135 priv = netdev_priv(dev); 117 priv = netdev_priv(dev);
136 card = priv->card; 118 card = priv->card;
137 119
@@ -154,22 +136,15 @@ orinoco_cs_attach(void)
154 link->conf.IntType = INT_MEMORY_AND_IO; 136 link->conf.IntType = INT_MEMORY_AND_IO;
155 137
156 /* Register with Card Services */ 138 /* Register with Card Services */
157 /* FIXME: need a lock? */ 139 link->next = NULL;
158 link->next = dev_list; 140
159 dev_list = link; 141 link->handle = p_dev;
160 142 p_dev->instance = link;
161 client_reg.dev_info = &dev_info; 143
162 client_reg.Version = 0x0210; /* FIXME: what does this mean? */ 144 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
163 client_reg.event_callback_args.client_data = link; 145 orinoco_cs_config(link);
164
165 ret = pcmcia_register_client(&link->handle, &client_reg);
166 if (ret != CS_SUCCESS) {
167 cs_error(link->handle, RegisterClient, ret);
168 orinoco_cs_detach(link);
169 return NULL;
170 }
171 146
172 return link; 147 return 0;
173} /* orinoco_cs_attach */ 148} /* orinoco_cs_attach */
174 149
175/* 150/*
@@ -178,27 +153,14 @@ orinoco_cs_attach(void)
178 * are freed. Otherwise, the structures will be freed when the device 153 * are freed. Otherwise, the structures will be freed when the device
179 * is released. 154 * is released.
180 */ 155 */
181static void orinoco_cs_detach(dev_link_t *link) 156static void orinoco_cs_detach(struct pcmcia_device *p_dev)
182{ 157{
183 dev_link_t **linkp; 158 dev_link_t *link = dev_to_instance(p_dev);
184 struct net_device *dev = link->priv; 159 struct net_device *dev = link->priv;
185 160
186 /* Locate device structure */
187 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
188 if (*linkp == link)
189 break;
190
191 BUG_ON(*linkp == NULL);
192
193 if (link->state & DEV_CONFIG) 161 if (link->state & DEV_CONFIG)
194 orinoco_cs_release(link); 162 orinoco_cs_release(link);
195 163
196 /* Break the link with Card Services */
197 if (link->handle)
198 pcmcia_deregister_client(link->handle);
199
200 /* Unlink device structure, and free it */
201 *linkp = link->next;
202 DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev); 164 DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev);
203 if (link->dev) { 165 if (link->dev) {
204 DEBUG(0, PFX "About to unregister net device %p\n", 166 DEBUG(0, PFX "About to unregister net device %p\n",
@@ -465,106 +427,82 @@ orinoco_cs_release(dev_link_t *link)
465 ioport_unmap(priv->hw.iobase); 427 ioport_unmap(priv->hw.iobase);
466} /* orinoco_cs_release */ 428} /* orinoco_cs_release */
467 429
468/* 430static int orinoco_cs_suspend(struct pcmcia_device *p_dev)
469 * The card status event handler. Mostly, this schedules other stuff
470 * to run after an event is received.
471 */
472static int
473orinoco_cs_event(event_t event, int priority,
474 event_callback_args_t * args)
475{ 431{
476 dev_link_t *link = args->client_data; 432 dev_link_t *link = dev_to_instance(p_dev);
477 struct net_device *dev = link->priv; 433 struct net_device *dev = link->priv;
478 struct orinoco_private *priv = netdev_priv(dev); 434 struct orinoco_private *priv = netdev_priv(dev);
479 struct orinoco_pccard *card = priv->card; 435 struct orinoco_pccard *card = priv->card;
480 int err = 0; 436 int err = 0;
481 unsigned long flags; 437 unsigned long flags;
482 438
483 switch (event) { 439 link->state |= DEV_SUSPEND;
484 case CS_EVENT_CARD_REMOVAL: 440 if (link->state & DEV_CONFIG) {
485 link->state &= ~DEV_PRESENT; 441 /* This is probably racy, but I can't think of
486 if (link->state & DEV_CONFIG) { 442 a better way, short of rewriting the PCMCIA
487 unsigned long flags; 443 layer to not suck :-( */
488 444 if (! test_bit(0, &card->hard_reset_in_progress)) {
489 spin_lock_irqsave(&priv->lock, flags); 445 spin_lock_irqsave(&priv->lock, flags);
446
447 err = __orinoco_down(dev);
448 if (err)
449 printk(KERN_WARNING "%s: Error %d downing interface\n",
450 dev->name, err);
451
490 netif_device_detach(dev); 452 netif_device_detach(dev);
491 priv->hw_unavailable++; 453 priv->hw_unavailable++;
454
492 spin_unlock_irqrestore(&priv->lock, flags); 455 spin_unlock_irqrestore(&priv->lock, flags);
493 } 456 }
494 break;
495 457
496 case CS_EVENT_CARD_INSERTION: 458 pcmcia_release_configuration(link->handle);
497 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; 459 }
498 orinoco_cs_config(link);
499 break;
500 460
501 case CS_EVENT_PM_SUSPEND: 461 return 0;
502 link->state |= DEV_SUSPEND; 462}
503 /* Fall through... */ 463
504 case CS_EVENT_RESET_PHYSICAL: 464static int orinoco_cs_resume(struct pcmcia_device *p_dev)
505 /* Mark the device as stopped, to block IO until later */ 465{
506 if (link->state & DEV_CONFIG) { 466 dev_link_t *link = dev_to_instance(p_dev);
507 /* This is probably racy, but I can't think of 467 struct net_device *dev = link->priv;
508 a better way, short of rewriting the PCMCIA 468 struct orinoco_private *priv = netdev_priv(dev);
509 layer to not suck :-( */ 469 struct orinoco_pccard *card = priv->card;
510 if (! test_bit(0, &card->hard_reset_in_progress)) { 470 int err = 0;
511 spin_lock_irqsave(&priv->lock, flags); 471 unsigned long flags;
512 472
513 err = __orinoco_down(dev); 473 link->state &= ~DEV_SUSPEND;
514 if (err) 474 if (link->state & DEV_CONFIG) {
515 printk(KERN_WARNING "%s: %s: Error %d downing interface\n", 475 /* FIXME: should we double check that this is
516 dev->name, 476 * the same card as we had before */
517 event == CS_EVENT_PM_SUSPEND ? "SUSPEND" : "RESET_PHYSICAL", 477 pcmcia_request_configuration(link->handle, &link->conf);
518 err); 478
519 479 if (! test_bit(0, &card->hard_reset_in_progress)) {
520 netif_device_detach(dev); 480 err = orinoco_reinit_firmware(dev);
521 priv->hw_unavailable++; 481 if (err) {
522 482 printk(KERN_ERR "%s: Error %d re-initializing firmware\n",
523 spin_unlock_irqrestore(&priv->lock, flags); 483 dev->name, err);
484 return -EIO;
524 } 485 }
525 486
526 pcmcia_release_configuration(link->handle); 487 spin_lock_irqsave(&priv->lock, flags);
527 } 488
528 break; 489 netif_device_attach(dev);
490 priv->hw_unavailable--;
529 491
530 case CS_EVENT_PM_RESUME: 492 if (priv->open && ! priv->hw_unavailable) {
531 link->state &= ~DEV_SUSPEND; 493 err = __orinoco_up(dev);
532 /* Fall through... */ 494 if (err)
533 case CS_EVENT_CARD_RESET: 495 printk(KERN_ERR "%s: Error %d restarting card\n",
534 if (link->state & DEV_CONFIG) {
535 /* FIXME: should we double check that this is
536 * the same card as we had before */
537 pcmcia_request_configuration(link->handle, &link->conf);
538
539 if (! test_bit(0, &card->hard_reset_in_progress)) {
540 err = orinoco_reinit_firmware(dev);
541 if (err) {
542 printk(KERN_ERR "%s: Error %d re-initializing firmware\n",
543 dev->name, err); 496 dev->name, err);
544 break;
545 }
546
547 spin_lock_irqsave(&priv->lock, flags);
548
549 netif_device_attach(dev);
550 priv->hw_unavailable--;
551
552 if (priv->open && ! priv->hw_unavailable) {
553 err = __orinoco_up(dev);
554 if (err)
555 printk(KERN_ERR "%s: Error %d restarting card\n",
556 dev->name, err);
557
558 }
559
560 spin_unlock_irqrestore(&priv->lock, flags);
561 } 497 }
498
499 spin_unlock_irqrestore(&priv->lock, flags);
562 } 500 }
563 break;
564 } 501 }
565 502
566 return err; 503 return 0;
567} /* orinoco_cs_event */ 504}
505
568 506
569/********************************************************************/ 507/********************************************************************/
570/* Module initialization */ 508/* Module initialization */
@@ -665,10 +603,11 @@ static struct pcmcia_driver orinoco_driver = {
665 .drv = { 603 .drv = {
666 .name = DRIVER_NAME, 604 .name = DRIVER_NAME,
667 }, 605 },
668 .attach = orinoco_cs_attach, 606 .probe = orinoco_cs_attach,
669 .detach = orinoco_cs_detach, 607 .remove = orinoco_cs_detach,
670 .event = orinoco_cs_event,
671 .id_table = orinoco_cs_ids, 608 .id_table = orinoco_cs_ids,
609 .suspend = orinoco_cs_suspend,
610 .resume = orinoco_cs_resume,
672}; 611};
673 612
674static int __init 613static int __init
@@ -683,7 +622,6 @@ static void __exit
683exit_orinoco_cs(void) 622exit_orinoco_cs(void)
684{ 623{
685 pcmcia_unregister_driver(&orinoco_driver); 624 pcmcia_unregister_driver(&orinoco_driver);
686 BUG_ON(dev_list != NULL);
687} 625}
688 626
689module_init(init_orinoco_cs); 627module_init(init_orinoco_cs);