static int btuart_event(event_t event, int priority, event_callback_args_t *args) { dev_link_t *link = args->client_data; btuart_info_t *info = link->priv; switch (event) { case CS_EVENT_CARD_REMOVAL: link->state &= ~DEV_PRESENT; if (link->state & DEV_CONFIG) { btuart_close(info); btuart_release(link); } break; case CS_EVENT_CARD_INSERTION: link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; btuart_config(link); break; case CS_EVENT_PM_SUSPEND: link->state |= DEV_SUSPEND; /* Fall through... */ case CS_EVENT_RESET_PHYSICAL: if (link->state & DEV_CONFIG) pcmcia_release_configuration(link->handle); break; case CS_EVENT_PM_RESUME: link->state &= ~DEV_SUSPEND; /* Fall through... */ case CS_EVENT_CARD_RESET: if (DEV_OK(link)) pcmcia_request_configuration(link->handle, &link->conf); break; } return 0; }
static void btuart_release(struct pcmcia_device *link) { btuart_info_t *info = link->priv; btuart_close(info); pcmcia_disable_device(link); }
static void btuart_release(dev_link_t *link) { btuart_info_t *info = link->priv; if (link->state & DEV_PRESENT) btuart_close(info); link->dev = NULL; pcmcia_release_configuration(link->handle); pcmcia_release_io(link->handle, &link->io); pcmcia_release_irq(link->handle, &link->irq); link->state &= ~DEV_CONFIG; }
static int btuart_config(struct pcmcia_device *link) { btuart_info_t *info = link->priv; int i; int try; /* First pass: look for a config entry that looks normal. Two tries: without IO aliases, then with aliases */ for (try = 0; try < 2; try++) if (!pcmcia_loop_config(link, btuart_check_config, &try)) goto found_port; /* Second pass: try to find an entry that isn't picky about its base address, then try to grab any standard serial port address, and finally try to get any free port. */ if (!pcmcia_loop_config(link, btuart_check_config_notpicky, NULL)) goto found_port; BT_ERR("No usable port range found"); goto failed; found_port: i = pcmcia_request_irq(link, btuart_interrupt); if (i != 0) goto failed; i = pcmcia_enable_device(link); if (i != 0) goto failed; if (btuart_open(info) != 0) goto failed; return 0; failed: btuart_release(link); return -ENODEV; } static void btuart_release(struct pcmcia_device *link) { btuart_info_t *info = link->priv; btuart_close(info); pcmcia_disable_device(link); } static const struct pcmcia_device_id btuart_ids[] = { /* don't use this driver. Use serial_cs + hci_uart instead */ PCMCIA_DEVICE_NULL }; MODULE_DEVICE_TABLE(pcmcia, btuart_ids); static struct pcmcia_driver btuart_driver = { .owner = THIS_MODULE, .name = "btuart_cs", .probe = btuart_probe, .remove = btuart_detach, .id_table = btuart_ids, }; static int __init init_btuart_cs(void) { return pcmcia_register_driver(&btuart_driver); } static void __exit exit_btuart_cs(void) { pcmcia_unregister_driver(&btuart_driver); } module_init(init_btuart_cs); module_exit(exit_btuart_cs);