1 /* $Id: hysdn_init.c,v 1.6.6.6 2001/09/23 22:24:54 kai Exp $
3 * Linux driver for HYSDN cards, init functions.
5 * Author Werner Cornelius (werner@titro.de) for Hypercope GmbH
6 * Copyright 1999 by Werner Cornelius (werner@titro.de)
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/poll.h>
16 #include <linux/vmalloc.h>
17 #include <linux/slab.h>
18 #include <linux/pci.h>
20 #include "hysdn_defs.h"
22 static struct pci_device_id hysdn_pci_tbl[] = {
23 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_METRO},
24 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2},
25 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_ERGO},
26 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO},
27 { } /* Terminating entry */
29 MODULE_DEVICE_TABLE(pci, hysdn_pci_tbl);
30 MODULE_DESCRIPTION("ISDN4Linux: Driver for HYSDN cards");
31 MODULE_AUTHOR("Werner Cornelius");
32 MODULE_LICENSE("GPL");
34 static char *hysdn_init_revision = "$Revision: 1.6.6.6 $";
35 static int cardmax; /* number of found cards */
36 hysdn_card *card_root = NULL; /* pointer to first card */
38 /**********************************************/
39 /* table assigning PCI-sub ids to board types */
40 /* the last entry contains all 0 */
41 /**********************************************/
43 unsigned short subid; /* PCI sub id */
44 unsigned char cardtyp; /* card type assigned */
48 PCI_SUBDEVICE_ID_HYPERCOPE_METRO, BD_METRO
51 PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2, BD_CHAMP2
54 PCI_SUBDEVICE_ID_HYPERCOPE_ERGO, BD_ERGO
57 PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO, BD_ERGO
61 } /* terminating entry */
65 /*********************************************************************/
66 /* search_cards searches for available cards in the pci config data. */
67 /* If a card is found, the card structure is allocated and the cards */
68 /* ressources are reserved. cardmax is incremented. */
69 /*********************************************************************/
73 struct pci_dev *akt_pcidev = NULL;
74 hysdn_card *card, *card_last;
79 while ((akt_pcidev = pci_find_device(PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX,
80 akt_pcidev)) != NULL) {
81 if (pci_enable_device(akt_pcidev))
84 if (!(card = kzalloc(sizeof(hysdn_card), GFP_KERNEL))) {
85 printk(KERN_ERR "HYSDN: unable to alloc device mem \n");
88 card->myid = cardmax; /* set own id */
89 card->bus = akt_pcidev->bus->number;
90 card->devfn = akt_pcidev->devfn; /* slot + function */
91 card->subsysid = akt_pcidev->subsystem_device;
92 card->irq = akt_pcidev->irq;
93 card->iobase = pci_resource_start(akt_pcidev, PCI_REG_PLX_IO_BASE);
94 card->plxbase = pci_resource_start(akt_pcidev, PCI_REG_PLX_MEM_BASE);
95 card->membase = pci_resource_start(akt_pcidev, PCI_REG_MEMORY_BASE);
96 card->brdtype = BD_NONE; /* unknown */
97 card->debug_flags = DEF_DEB_FLAGS; /* set default debug */
98 card->faxchans = 0; /* default no fax channels */
99 card->bchans = 2; /* and 2 b-channels */
100 for (i = 0; pci_subid_map[i].subid; i++)
101 if (pci_subid_map[i].subid == card->subsysid) {
102 card->brdtype = pci_subid_map[i].cardtyp;
105 if (card->brdtype != BD_NONE) {
106 if (ergo_inithardware(card)) {
107 printk(KERN_WARNING "HYSDN: card at io 0x%04x already in use\n", card->iobase);
112 printk(KERN_WARNING "HYSDN: unknown card id 0x%04x\n", card->subsysid);
113 kfree(card); /* release mem */
117 card->next = NULL; /*end of chain */
119 card_last->next = card; /* pointer to next card */
122 card_last = card; /* new chain end */
126 /************************************************************************************/
127 /* free_resources frees the acquired PCI resources and returns the allocated memory */
128 /************************************************************************************/
136 if (card->releasehardware)
137 card->releasehardware(card); /* free all hardware resources */
138 card_root = card_root->next; /* remove card from chain */
139 kfree(card); /* return mem */
141 } /* while card_root */
142 } /* free_resources */
144 /**************************************************************************/
145 /* stop_cards disables (hardware resets) all cards and disables interrupt */
146 /**************************************************************************/
152 card = card_root; /* first in chain */
155 card->stopcard(card);
156 card = card->next; /* remove card from chain */
161 /****************************************************************************/
162 /* The module startup and shutdown code. Only compiled when used as module. */
163 /* Using the driver as module is always advisable, because the booting */
164 /* image becomes smaller and the driver code is only loaded when needed. */
165 /* Additionally newer versions may be activated without rebooting. */
166 /****************************************************************************/
168 /******************************************************/
169 /* extract revision number from string for log output */
170 /******************************************************/
172 hysdn_getrev(const char *revision)
177 if ((p = strchr(revision, ':'))) {
179 p = strchr(rev, '$');
187 /****************************************************************************/
188 /* init_module is called once when the module is loaded to do all necessary */
189 /* things like autodetect... */
190 /* If the return value of this function is 0 the init has been successful */
191 /* and the module is added to the list in /proc/modules, otherwise an error */
192 /* is assumed and the module will not be kept in memory. */
193 /****************************************************************************/
199 strcpy(tmp, hysdn_init_revision);
200 printk(KERN_NOTICE "HYSDN: module Rev: %s loaded\n", hysdn_getrev(tmp));
201 strcpy(tmp, hysdn_net_revision);
202 printk(KERN_NOTICE "HYSDN: network interface Rev: %s \n", hysdn_getrev(tmp));
204 printk(KERN_INFO "HYSDN: %d card(s) found.\n", cardmax);
206 if (hysdn_procconf_init()) {
207 free_resources(); /* proc file_sys not created */
210 #ifdef CONFIG_HYSDN_CAPI
213 printk(KERN_ERR "HYCAPI: init failed\n");
217 #endif /* CONFIG_HYSDN_CAPI */
218 return (0); /* no error */
222 /***********************************************************************/
223 /* cleanup_module is called when the module is released by the kernel. */
224 /* The routine is only called if init_module has been successful and */
225 /* the module counter has a value of 0. Otherwise this function will */
226 /* not be called. This function must release all resources still allo- */
227 /* cated as after the return from this function the module code will */
228 /* be removed from memory. */
229 /***********************************************************************/
233 #ifdef CONFIG_HYSDN_CAPI
235 #endif /* CONFIG_HYSDN_CAPI */
237 #ifdef CONFIG_HYSDN_CAPI
238 card = card_root; /* first in chain */
240 hycapi_capi_release(card);
241 card = card->next; /* remove card from chain */
244 #endif /* CONFIG_HYSDN_CAPI */
245 hysdn_procconf_release();
247 printk(KERN_NOTICE "HYSDN: module unloaded\n");
248 } /* cleanup_module */
250 module_init(hysdn_init);
251 module_exit(hysdn_exit);