diff options
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/hysdn/hysdn_init.c | 274 |
1 files changed, 130 insertions, 144 deletions
diff --git a/drivers/isdn/hysdn/hysdn_init.c b/drivers/isdn/hysdn/hysdn_init.c index 9e01748a176..b7cc5c2f08c 100644 --- a/drivers/isdn/hysdn/hysdn_init.c +++ b/drivers/isdn/hysdn/hysdn_init.c @@ -20,10 +20,15 @@ #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}, - {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2}, - {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_ERGO}, - {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO}, + { 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); @@ -34,128 +39,7 @@ MODULE_LICENSE("GPL"); static char *hysdn_init_revision = "$Revision: 1.6.6.6 $"; static int cardmax; /* number of found cards */ hysdn_card *card_root = NULL; /* pointer to first card */ - -/**********************************************/ -/* table assigning PCI-sub ids to board types */ -/* the last entry contains all 0 */ -/**********************************************/ -static struct { - unsigned short subid; /* PCI sub id */ - unsigned char cardtyp; /* card type assigned */ -} pci_subid_map[] = { - - { - PCI_SUBDEVICE_ID_HYPERCOPE_METRO, BD_METRO - }, - { - PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2, BD_CHAMP2 - }, - { - PCI_SUBDEVICE_ID_HYPERCOPE_ERGO, BD_ERGO - }, - { - PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO, BD_ERGO - }, - { - 0, 0 - } /* terminating entry */ -}; - - -/*********************************************************************/ -/* search_cards searches for available cards in the pci config data. */ -/* If a card is found, the card structure is allocated and the cards */ -/* ressources are reserved. cardmax is incremented. */ -/*********************************************************************/ -static void -search_cards(void) -{ - struct pci_dev *akt_pcidev = NULL; - hysdn_card *card, *card_last; - int i; - - card_root = NULL; - card_last = NULL; - while ((akt_pcidev = pci_find_device(PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, - akt_pcidev)) != NULL) { - if (pci_enable_device(akt_pcidev)) - continue; - - if (!(card = kzalloc(sizeof(hysdn_card), GFP_KERNEL))) { - printk(KERN_ERR "HYSDN: unable to alloc device mem \n"); - return; - } - 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 */ - for (i = 0; pci_subid_map[i].subid; i++) - if (pci_subid_map[i].subid == card->subsysid) { - card->brdtype = pci_subid_map[i].cardtyp; - break; - } - if (card->brdtype != BD_NONE) { - if (ergo_inithardware(card)) { - printk(KERN_WARNING "HYSDN: card at io 0x%04x already in use\n", card->iobase); - kfree(card); - continue; - } - } else { - printk(KERN_WARNING "HYSDN: unknown card id 0x%04x\n", card->subsysid); - kfree(card); /* release mem */ - continue; - } - 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 */ - } /* device found */ -} /* search_cards */ - -/************************************************************************************/ -/* free_resources frees the acquired PCI resources and returns the allocated memory */ -/************************************************************************************/ -static void -free_resources(void) -{ - hysdn_card *card; - - while (card_root) { - card = card_root; - if (card->releasehardware) - card->releasehardware(card); /* free all hardware resources */ - card_root = card_root->next; /* remove card from chain */ - kfree(card); /* return mem */ - - } /* while card_root */ -} /* free_resources */ - -/**************************************************************************/ -/* stop_cards disables (hardware resets) all cards and disables interrupt */ -/**************************************************************************/ -static void -stop_cards(void) -{ - hysdn_card *card; - - card = card_root; /* first in chain */ - while (card) { - if (card->stopcard) - card->stopcard(card); - card = card->next; /* remove card from chain */ - } /* while card */ -} /* stop_cards */ +static hysdn_card *card_last = NULL; /* pointer to first card */ /****************************************************************************/ @@ -191,31 +75,138 @@ hysdn_getrev(const char *revision) /* 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 __devinit 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 __devexit 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 = __devexit_p(hysdn_pci_remove_one), +}; + +static int hysdn_have_procfs; + static int __init hysdn_init(void) { char tmp[50]; + int rc; strcpy(tmp, hysdn_init_revision); printk(KERN_NOTICE "HYSDN: module Rev: %s loaded\n", hysdn_getrev(tmp)); strcpy(tmp, hysdn_net_revision); printk(KERN_NOTICE "HYSDN: network interface Rev: %s \n", hysdn_getrev(tmp)); - search_cards(); + + 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()) { - free_resources(); /* proc file_sys not created */ - return (-1); - } + 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"); - return(-1); + + if (hysdn_have_procfs) + hysdn_procconf_release(); + + pci_unregister_driver(&hysdn_pci_driver); + return -ESPIPE; } } #endif /* CONFIG_HYSDN_CAPI */ - return (0); /* no error */ + + return 0; /* no error */ } /* init_module */ @@ -230,20 +221,15 @@ hysdn_init(void) static void __exit hysdn_exit(void) { + if (hysdn_have_procfs) + hysdn_procconf_release(); + + pci_unregister_driver(&hysdn_pci_driver); + #ifdef CONFIG_HYSDN_CAPI - hysdn_card *card; -#endif /* CONFIG_HYSDN_CAPI */ - stop_cards(); -#ifdef CONFIG_HYSDN_CAPI - card = card_root; /* first in chain */ - while (card) { - hycapi_capi_release(card); - card = card->next; /* remove card from chain */ - } /* while card */ hycapi_cleanup(); #endif /* CONFIG_HYSDN_CAPI */ - hysdn_procconf_release(); - free_resources(); + printk(KERN_NOTICE "HYSDN: module unloaded\n"); } /* cleanup_module */ |