/* $Id: hysdn_init.c,v 1.6.6.6 2001/09/23 22:24:54 kai Exp $ * * Linux driver for HYSDN cards, init functions. * * Author Werner Cornelius (werner@titro.de) for Hypercope GmbH * Copyright 1999 by Werner Cornelius (werner@titro.de) * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #include #include #include #include #include #include #include "hysdn_defs.h" static struct pci_device_id hysdn_pci_tbl[] = { { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_METRO, 0, 0, BD_METRO }, { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2, 0, 0, BD_CHAMP2 }, { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_ERGO, 0, 0, BD_ERGO }, { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO, 0, 0, BD_ERGO }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(pci, hysdn_pci_tbl); MODULE_DESCRIPTION("ISDN4Linux: Driver for HYSDN cards"); MODULE_AUTHOR("Werner Cornelius"); MODULE_LICENSE("GPL"); static int cardmax; /* number of found cards */ hysdn_card *card_root = NULL; /* pointer to first card */ static hysdn_card *card_last = NULL; /* pointer to first card */ /****************************************************************************/ /* The module startup and shutdown code. Only compiled when used as module. */ /* Using the driver as module is always advisable, because the booting */ /* image becomes smaller and the driver code is only loaded when needed. */ /* Additionally newer versions may be activated without rebooting. */ /****************************************************************************/ /****************************************************************************/ /* init_module is called once when the module is loaded to do all necessary */ /* things like autodetect... */ /* If the return value of this function is 0 the init has been successful */ /* and the module is added to the list in /proc/modules, otherwise an error */ /* is assumed and the module will not be kept in memory. */ /****************************************************************************/ static int hysdn_pci_init_one(struct pci_dev *akt_pcidev, const struct pci_device_id *ent) { hysdn_card *card; int rc; rc = pci_enable_device(akt_pcidev); if (rc) return rc; if (!(card = kzalloc(sizeof(hysdn_card), GFP_KERNEL))) { printk(KERN_ERR "HYSDN: unable to alloc device mem \n"); rc = -ENOMEM; goto err_out; } card->myid = cardmax; /* set own id */ card->bus = akt_pcidev->bus->number; card->devfn = akt_pcidev->devfn; /* slot + function */ card->subsysid = akt_pcidev->subsystem_device; card->irq = akt_pcidev->irq; card->iobase = pci_resource_start(akt_pcidev, PCI_REG_PLX_IO_BASE); card->plxbase = pci_resource_start(akt_pcidev, PCI_REG_PLX_MEM_BASE); card->membase = pci_resource_start(akt_pcidev, PCI_REG_MEMORY_BASE); card->brdtype = BD_NONE; /* unknown */ card->debug_flags = DEF_DEB_FLAGS; /* set default debug */ card->faxchans = 0; /* default no fax channels */ card->bchans = 2; /* and 2 b-channels */ card->brdtype = ent->driver_data; if (ergo_inithardware(card)) { printk(KERN_WARNING "HYSDN: card at io 0x%04x already in use\n", card->iobase); rc = -EBUSY; goto err_out_card; } cardmax++; card->next = NULL; /*end of chain */ if (card_last) card_last->next = card; /* pointer to next card */ else card_root = card; card_last = card; /* new chain end */ pci_set_drvdata(akt_pcidev, card); return 0; err_out_card: kfree(card); err_out: pci_disable_device(akt_pcidev); return rc; } static void hysdn_pci_remove_one(struct pci_dev *akt_pcidev) { hysdn_card *card = pci_get_drvdata(akt_pcidev); pci_set_drvdata(akt_pcidev, NULL); if (card->stopcard) card->stopcard(card); #ifdef CONFIG_HYSDN_CAPI hycapi_capi_release(card); #endif if (card->releasehardware) card->releasehardware(card); /* free all hardware resources */ if (card == card_root) { card_root = card_root->next; if (!card_root) card_last = NULL; } else { hysdn_card *tmp = card_root; while (tmp) { if (tmp->next == card) tmp->next = card->next; card_last = tmp; tmp = tmp->next; } } kfree(card); pci_disable_device(akt_pcidev); } static struct pci_driver hysdn_pci_driver = { .name = "hysdn", .id_table = hysdn_pci_tbl, .probe = hysdn_pci_init_one, .remove = hysdn_pci_remove_one, }; static int hysdn_have_procfs; static int __init hysdn_init(void) { int rc; printk(KERN_NOTICE "HYSDN: module loaded\n"); rc = pci_register_driver(&hysdn_pci_driver); if (rc) return rc; printk(KERN_INFO "HYSDN: %d card(s) found.\n", cardmax); if (!hysdn_procconf_init()) hysdn_have_procfs = 1; #ifdef CONFIG_HYSDN_CAPI if (cardmax > 0) { if (hycapi_init()) { printk(KERN_ERR "HYCAPI: init failed\n"); if (hysdn_have_procfs) hysdn_procconf_release(); pci_unregister_driver(&hysdn_pci_driver); return -ESPIPE; } } #endif /* CONFIG_HYSDN_CAPI */ return 0; /* no error */ } /* init_module */ /***********************************************************************/ /* cleanup_module is called when the module is released by the kernel. */ /* The routine is only called if init_module has been successful and */ /* the module counter has a value of 0. Otherwise this function will */ /* not be called. This function must release all resources still allo- */ /* cated as after the return from this function the module code will */ /* be removed from memory. */ /***********************************************************************/ static void __exit hysdn_exit(void) { if (hysdn_have_procfs) hysdn_procconf_release(); pci_unregister_driver(&hysdn_pci_driver); #ifdef CONFIG_HYSDN_CAPI hycapi_cleanup(); #endif /* CONFIG_HYSDN_CAPI */ printk(KERN_NOTICE "HYSDN: module unloaded\n"); } /* cleanup_module */ module_init(hysdn_init); module_exit(hysdn_exit);