Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: hysdn_init.c,v 1.6.6.6 2001/09/23 22:24:54 kai Exp $ |
| 2 | * |
| 3 | * Linux driver for HYSDN cards, init functions. |
| 4 | * |
| 5 | * Author Werner Cornelius (werner@titro.de) for Hypercope GmbH |
| 6 | * Copyright 1999 by Werner Cornelius (werner@titro.de) |
| 7 | * |
| 8 | * This software may be used and distributed according to the terms |
| 9 | * of the GNU General Public License, incorporated herein by reference. |
| 10 | * |
| 11 | */ |
| 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/poll.h> |
| 16 | #include <linux/vmalloc.h> |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/pci.h> |
| 19 | |
| 20 | #include "hysdn_defs.h" |
| 21 | |
| 22 | static struct pci_device_id hysdn_pci_tbl[] = { |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 23 | { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, |
| 24 | PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_METRO, 0, 0, BD_METRO }, |
| 25 | { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, |
| 26 | PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2, 0, 0, BD_CHAMP2 }, |
| 27 | { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, |
| 28 | PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_ERGO, 0, 0, BD_ERGO }, |
| 29 | { PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, |
| 30 | PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO, 0, 0, BD_ERGO }, |
| 31 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | { } /* Terminating entry */ |
| 33 | }; |
| 34 | MODULE_DEVICE_TABLE(pci, hysdn_pci_tbl); |
| 35 | MODULE_DESCRIPTION("ISDN4Linux: Driver for HYSDN cards"); |
| 36 | MODULE_AUTHOR("Werner Cornelius"); |
| 37 | MODULE_LICENSE("GPL"); |
| 38 | |
Adrian Bunk | aade0e8 | 2005-06-28 20:44:56 -0700 | [diff] [blame] | 39 | static int cardmax; /* number of found cards */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | hysdn_card *card_root = NULL; /* pointer to first card */ |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 41 | static hysdn_card *card_last = NULL; /* pointer to first card */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | |
| 44 | /****************************************************************************/ |
| 45 | /* The module startup and shutdown code. Only compiled when used as module. */ |
| 46 | /* Using the driver as module is always advisable, because the booting */ |
| 47 | /* image becomes smaller and the driver code is only loaded when needed. */ |
| 48 | /* Additionally newer versions may be activated without rebooting. */ |
| 49 | /****************************************************************************/ |
| 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | /****************************************************************************/ |
| 52 | /* init_module is called once when the module is loaded to do all necessary */ |
| 53 | /* things like autodetect... */ |
| 54 | /* If the return value of this function is 0 the init has been successful */ |
| 55 | /* and the module is added to the list in /proc/modules, otherwise an error */ |
| 56 | /* is assumed and the module will not be kept in memory. */ |
| 57 | /****************************************************************************/ |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 58 | |
| 59 | static int __devinit hysdn_pci_init_one(struct pci_dev *akt_pcidev, |
| 60 | const struct pci_device_id *ent) |
| 61 | { |
| 62 | hysdn_card *card; |
| 63 | int rc; |
| 64 | |
| 65 | rc = pci_enable_device(akt_pcidev); |
| 66 | if (rc) |
| 67 | return rc; |
| 68 | |
| 69 | if (!(card = kzalloc(sizeof(hysdn_card), GFP_KERNEL))) { |
| 70 | printk(KERN_ERR "HYSDN: unable to alloc device mem \n"); |
| 71 | rc = -ENOMEM; |
| 72 | goto err_out; |
| 73 | } |
| 74 | card->myid = cardmax; /* set own id */ |
| 75 | card->bus = akt_pcidev->bus->number; |
| 76 | card->devfn = akt_pcidev->devfn; /* slot + function */ |
| 77 | card->subsysid = akt_pcidev->subsystem_device; |
| 78 | card->irq = akt_pcidev->irq; |
| 79 | card->iobase = pci_resource_start(akt_pcidev, PCI_REG_PLX_IO_BASE); |
| 80 | card->plxbase = pci_resource_start(akt_pcidev, PCI_REG_PLX_MEM_BASE); |
| 81 | card->membase = pci_resource_start(akt_pcidev, PCI_REG_MEMORY_BASE); |
| 82 | card->brdtype = BD_NONE; /* unknown */ |
| 83 | card->debug_flags = DEF_DEB_FLAGS; /* set default debug */ |
| 84 | card->faxchans = 0; /* default no fax channels */ |
| 85 | card->bchans = 2; /* and 2 b-channels */ |
| 86 | card->brdtype = ent->driver_data; |
| 87 | |
| 88 | if (ergo_inithardware(card)) { |
| 89 | printk(KERN_WARNING "HYSDN: card at io 0x%04x already in use\n", card->iobase); |
| 90 | rc = -EBUSY; |
| 91 | goto err_out_card; |
| 92 | } |
| 93 | |
| 94 | cardmax++; |
| 95 | card->next = NULL; /*end of chain */ |
| 96 | if (card_last) |
| 97 | card_last->next = card; /* pointer to next card */ |
| 98 | else |
| 99 | card_root = card; |
| 100 | card_last = card; /* new chain end */ |
| 101 | |
| 102 | pci_set_drvdata(akt_pcidev, card); |
| 103 | return 0; |
| 104 | |
| 105 | err_out_card: |
| 106 | kfree(card); |
| 107 | err_out: |
| 108 | pci_disable_device(akt_pcidev); |
| 109 | return rc; |
| 110 | } |
| 111 | |
| 112 | static void __devexit hysdn_pci_remove_one(struct pci_dev *akt_pcidev) |
| 113 | { |
| 114 | hysdn_card *card = pci_get_drvdata(akt_pcidev); |
| 115 | |
| 116 | pci_set_drvdata(akt_pcidev, NULL); |
| 117 | |
| 118 | if (card->stopcard) |
| 119 | card->stopcard(card); |
| 120 | |
| 121 | #ifdef CONFIG_HYSDN_CAPI |
| 122 | hycapi_capi_release(card); |
| 123 | #endif |
| 124 | |
| 125 | if (card->releasehardware) |
| 126 | card->releasehardware(card); /* free all hardware resources */ |
| 127 | |
| 128 | if (card == card_root) { |
| 129 | card_root = card_root->next; |
| 130 | if (!card_root) |
| 131 | card_last = NULL; |
| 132 | } else { |
| 133 | hysdn_card *tmp = card_root; |
| 134 | while (tmp) { |
| 135 | if (tmp->next == card) |
| 136 | tmp->next = card->next; |
| 137 | card_last = tmp; |
| 138 | tmp = tmp->next; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | kfree(card); |
| 143 | pci_disable_device(akt_pcidev); |
| 144 | } |
| 145 | |
| 146 | static struct pci_driver hysdn_pci_driver = { |
| 147 | .name = "hysdn", |
| 148 | .id_table = hysdn_pci_tbl, |
| 149 | .probe = hysdn_pci_init_one, |
| 150 | .remove = __devexit_p(hysdn_pci_remove_one), |
| 151 | }; |
| 152 | |
| 153 | static int hysdn_have_procfs; |
| 154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | static int __init |
| 156 | hysdn_init(void) |
| 157 | { |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 158 | int rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
David S. Miller | cd141ee | 2011-02-09 13:54:26 -0800 | [diff] [blame] | 160 | printk(KERN_NOTICE "HYSDN: module loaded\n"); |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 161 | |
| 162 | rc = pci_register_driver(&hysdn_pci_driver); |
| 163 | if (rc) |
| 164 | return rc; |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | printk(KERN_INFO "HYSDN: %d card(s) found.\n", cardmax); |
| 167 | |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 168 | if (!hysdn_procconf_init()) |
| 169 | hysdn_have_procfs = 1; |
| 170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | #ifdef CONFIG_HYSDN_CAPI |
| 172 | if(cardmax > 0) { |
| 173 | if(hycapi_init()) { |
| 174 | printk(KERN_ERR "HYCAPI: init failed\n"); |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 175 | |
| 176 | if (hysdn_have_procfs) |
| 177 | hysdn_procconf_release(); |
| 178 | |
| 179 | pci_unregister_driver(&hysdn_pci_driver); |
| 180 | return -ESPIPE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | } |
| 182 | } |
| 183 | #endif /* CONFIG_HYSDN_CAPI */ |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 184 | |
| 185 | return 0; /* no error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | } /* init_module */ |
| 187 | |
| 188 | |
| 189 | /***********************************************************************/ |
| 190 | /* cleanup_module is called when the module is released by the kernel. */ |
| 191 | /* The routine is only called if init_module has been successful and */ |
| 192 | /* the module counter has a value of 0. Otherwise this function will */ |
| 193 | /* not be called. This function must release all resources still allo- */ |
| 194 | /* cated as after the return from this function the module code will */ |
| 195 | /* be removed from memory. */ |
| 196 | /***********************************************************************/ |
| 197 | static void __exit |
| 198 | hysdn_exit(void) |
| 199 | { |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 200 | if (hysdn_have_procfs) |
| 201 | hysdn_procconf_release(); |
| 202 | |
| 203 | pci_unregister_driver(&hysdn_pci_driver); |
| 204 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | #ifdef CONFIG_HYSDN_CAPI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | hycapi_cleanup(); |
| 207 | #endif /* CONFIG_HYSDN_CAPI */ |
Jeff Garzik | 60cc514 | 2007-08-02 18:51:14 -0400 | [diff] [blame] | 208 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | printk(KERN_NOTICE "HYSDN: module unloaded\n"); |
| 210 | } /* cleanup_module */ |
| 211 | |
| 212 | module_init(hysdn_init); |
| 213 | module_exit(hysdn_exit); |