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path: root/drivers/net/wireless/netwave_cs.c
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Diffstat (limited to 'drivers/net/wireless/netwave_cs.c')
-rw-r--r--drivers/net/wireless/netwave_cs.c184
1 files changed, 53 insertions, 131 deletions
diff --git a/drivers/net/wireless/netwave_cs.c b/drivers/net/wireless/netwave_cs.c
index 92793b958e32..bf6271ee387a 100644
--- a/drivers/net/wireless/netwave_cs.c
+++ b/drivers/net/wireless/netwave_cs.c
@@ -166,8 +166,6 @@ static char *version =
166#define DEBUG(n, args...) 166#define DEBUG(n, args...)
167#endif 167#endif
168 168
169static dev_info_t dev_info = "netwave_cs";
170
171/*====================================================================*/ 169/*====================================================================*/
172 170
173/* Parameters that can be set with 'insmod' */ 171/* Parameters that can be set with 'insmod' */
@@ -195,12 +193,9 @@ module_param(mem_speed, int, 0);
195 193
196/* PCMCIA (Card Services) related functions */ 194/* PCMCIA (Card Services) related functions */
197static void netwave_release(dev_link_t *link); /* Card removal */ 195static void netwave_release(dev_link_t *link); /* Card removal */
198static int netwave_event(event_t event, int priority,
199 event_callback_args_t *args);
200static void netwave_pcmcia_config(dev_link_t *arg); /* Runs after card 196static void netwave_pcmcia_config(dev_link_t *arg); /* Runs after card
201 insertion */ 197 insertion */
202static dev_link_t *netwave_attach(void); /* Create instance */ 198static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */
203static void netwave_detach(dev_link_t *); /* Destroy instance */
204 199
205/* Hardware configuration */ 200/* Hardware configuration */
206static void netwave_doreset(kio_addr_t iobase, u_char __iomem *ramBase); 201static void netwave_doreset(kio_addr_t iobase, u_char __iomem *ramBase);
@@ -228,17 +223,6 @@ static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev);
228static void set_multicast_list(struct net_device *dev); 223static void set_multicast_list(struct net_device *dev);
229 224
230/* 225/*
231 A linked list of "instances" of the skeleton device. Each actual
232 PCMCIA card corresponds to one device instance, and is described
233 by one dev_link_t structure (defined in ds.h).
234
235 You may not want to use a linked list for this -- for example, the
236 memory card driver uses an array of dev_link_t pointers, where minor
237 device numbers are used to derive the corresponding array index.
238*/
239static dev_link_t *dev_list;
240
241/*
242 A dev_link_t structure has fields for most things that are needed 226 A dev_link_t structure has fields for most things that are needed
243 to keep track of a socket, but there will usually be some device 227 to keep track of a socket, but there will usually be some device
244 specific information that also needs to be kept track of. The 228 specific information that also needs to be kept track of. The
@@ -394,20 +378,18 @@ static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
394 * configure the card at this point -- we wait until we receive a 378 * configure the card at this point -- we wait until we receive a
395 * card insertion event. 379 * card insertion event.
396 */ 380 */
397static dev_link_t *netwave_attach(void) 381static int netwave_attach(struct pcmcia_device *p_dev)
398{ 382{
399 client_reg_t client_reg;
400 dev_link_t *link; 383 dev_link_t *link;
401 struct net_device *dev; 384 struct net_device *dev;
402 netwave_private *priv; 385 netwave_private *priv;
403 int ret; 386
404
405 DEBUG(0, "netwave_attach()\n"); 387 DEBUG(0, "netwave_attach()\n");
406 388
407 /* Initialize the dev_link_t structure */ 389 /* Initialize the dev_link_t structure */
408 dev = alloc_etherdev(sizeof(netwave_private)); 390 dev = alloc_etherdev(sizeof(netwave_private));
409 if (!dev) 391 if (!dev)
410 return NULL; 392 return -ENOMEM;
411 priv = netdev_priv(dev); 393 priv = netdev_priv(dev);
412 link = &priv->link; 394 link = &priv->link;
413 link->priv = dev; 395 link->priv = dev;
@@ -449,21 +431,14 @@ static dev_link_t *netwave_attach(void)
449 dev->open = &netwave_open; 431 dev->open = &netwave_open;
450 dev->stop = &netwave_close; 432 dev->stop = &netwave_close;
451 link->irq.Instance = dev; 433 link->irq.Instance = dev;
452
453 /* Register with Card Services */
454 link->next = dev_list;
455 dev_list = link;
456 client_reg.dev_info = &dev_info;
457 client_reg.Version = 0x0210;
458 client_reg.event_callback_args.client_data = link;
459 ret = pcmcia_register_client(&link->handle, &client_reg);
460 if (ret != 0) {
461 cs_error(link->handle, RegisterClient, ret);
462 netwave_detach(link);
463 return NULL;
464 }
465 434
466 return link; 435 link->handle = p_dev;
436 p_dev->instance = link;
437
438 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
439 netwave_pcmcia_config( link);
440
441 return 0;
467} /* netwave_attach */ 442} /* netwave_attach */
468 443
469/* 444/*
@@ -474,42 +449,20 @@ static dev_link_t *netwave_attach(void)
474 * structures are freed. Otherwise, the structures will be freed 449 * structures are freed. Otherwise, the structures will be freed
475 * when the device is released. 450 * when the device is released.
476 */ 451 */
477static void netwave_detach(dev_link_t *link) 452static void netwave_detach(struct pcmcia_device *p_dev)
478{ 453{
479 struct net_device *dev = link->priv; 454 dev_link_t *link = dev_to_instance(p_dev);
480 dev_link_t **linkp; 455 struct net_device *dev = link->priv;
481 456
482 DEBUG(0, "netwave_detach(0x%p)\n", link); 457 DEBUG(0, "netwave_detach(0x%p)\n", link);
483 458
484 /* 459 if (link->state & DEV_CONFIG)
485 If the device is currently configured and active, we won't 460 netwave_release(link);
486 actually delete it yet. Instead, it is marked so that when 461
487 the release() function is called, that will trigger a proper 462 if (link->dev)
488 detach(). 463 unregister_netdev(dev);
489 */ 464
490 if (link->state & DEV_CONFIG) 465 free_netdev(dev);
491 netwave_release(link);
492
493 /* Break the link with Card Services */
494 if (link->handle)
495 pcmcia_deregister_client(link->handle);
496
497 /* Locate device structure */
498 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
499 if (*linkp == link) break;
500 if (*linkp == NULL)
501 {
502 DEBUG(1, "netwave_cs: detach fail, '%s' not in list\n",
503 link->dev->dev_name);
504 return;
505 }
506
507 /* Unlink device structure, free pieces */
508 *linkp = link->next;
509 if (link->dev)
510 unregister_netdev(dev);
511 free_netdev(dev);
512
513} /* netwave_detach */ 466} /* netwave_detach */
514 467
515/* 468/*
@@ -935,69 +888,38 @@ static void netwave_release(dev_link_t *link)
935 link->state &= ~DEV_CONFIG; 888 link->state &= ~DEV_CONFIG;
936} 889}
937 890
938/* 891static int netwave_suspend(struct pcmcia_device *p_dev)
939 * Function netwave_event (event, priority, args)
940 *
941 * The card status event handler. Mostly, this schedules other
942 * stuff to run after an event is received. A CARD_REMOVAL event
943 * also sets some flags to discourage the net drivers from trying
944 * to talk to the card any more.
945 *
946 * When a CARD_REMOVAL event is received, we immediately set a flag
947 * to block future accesses to this device. All the functions that
948 * actually access the device should check this flag to make sure
949 * the card is still present.
950 *
951 */
952static int netwave_event(event_t event, int priority,
953 event_callback_args_t *args)
954{ 892{
955 dev_link_t *link = args->client_data; 893 dev_link_t *link = dev_to_instance(p_dev);
956 struct net_device *dev = link->priv; 894 struct net_device *dev = link->priv;
957 895
958 DEBUG(1, "netwave_event(0x%06x)\n", event);
959
960 switch (event) {
961 case CS_EVENT_REGISTRATION_COMPLETE:
962 DEBUG(0, "netwave_cs: registration complete\n");
963 break;
964
965 case CS_EVENT_CARD_REMOVAL:
966 link->state &= ~DEV_PRESENT;
967 if (link->state & DEV_CONFIG) {
968 netif_device_detach(dev);
969 netwave_release(link);
970 }
971 break;
972 case CS_EVENT_CARD_INSERTION:
973 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
974 netwave_pcmcia_config( link);
975 break;
976 case CS_EVENT_PM_SUSPEND:
977 link->state |= DEV_SUSPEND; 896 link->state |= DEV_SUSPEND;
978 /* Fall through... */
979 case CS_EVENT_RESET_PHYSICAL:
980 if (link->state & DEV_CONFIG) { 897 if (link->state & DEV_CONFIG) {
981 if (link->open) 898 if (link->open)
982 netif_device_detach(dev); 899 netif_device_detach(dev);
983 pcmcia_release_configuration(link->handle); 900 pcmcia_release_configuration(link->handle);
984 } 901 }
985 break; 902
986 case CS_EVENT_PM_RESUME: 903 return 0;
904}
905
906static int netwave_resume(struct pcmcia_device *p_dev)
907{
908 dev_link_t *link = dev_to_instance(p_dev);
909 struct net_device *dev = link->priv;
910
987 link->state &= ~DEV_SUSPEND; 911 link->state &= ~DEV_SUSPEND;
988 /* Fall through... */
989 case CS_EVENT_CARD_RESET:
990 if (link->state & DEV_CONFIG) { 912 if (link->state & DEV_CONFIG) {
991 pcmcia_request_configuration(link->handle, &link->conf); 913 pcmcia_request_configuration(link->handle, &link->conf);
992 if (link->open) { 914 if (link->open) {
993 netwave_reset(dev); 915 netwave_reset(dev);
994 netif_device_attach(dev); 916 netif_device_attach(dev);
995 } 917 }
996 } 918 }
997 break; 919
998 } 920 return 0;
999 return 0; 921}
1000} /* netwave_event */ 922
1001 923
1002/* 924/*
1003 * Function netwave_doreset (ioBase, ramBase) 925 * Function netwave_doreset (ioBase, ramBase)
@@ -1491,10 +1413,11 @@ static struct pcmcia_driver netwave_driver = {
1491 .drv = { 1413 .drv = {
1492 .name = "netwave_cs", 1414 .name = "netwave_cs",
1493 }, 1415 },
1494 .attach = netwave_attach, 1416 .probe = netwave_attach,
1495 .event = netwave_event, 1417 .remove = netwave_detach,
1496 .detach = netwave_detach,
1497 .id_table = netwave_ids, 1418 .id_table = netwave_ids,
1419 .suspend = netwave_suspend,
1420 .resume = netwave_resume,
1498}; 1421};
1499 1422
1500static int __init init_netwave_cs(void) 1423static int __init init_netwave_cs(void)
@@ -1505,7 +1428,6 @@ static int __init init_netwave_cs(void)
1505static void __exit exit_netwave_cs(void) 1428static void __exit exit_netwave_cs(void)
1506{ 1429{
1507 pcmcia_unregister_driver(&netwave_driver); 1430 pcmcia_unregister_driver(&netwave_driver);
1508 BUG_ON(dev_list != NULL);
1509} 1431}
1510 1432
1511module_init(init_netwave_cs); 1433module_init(init_netwave_cs);