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/config.h>
14 #include <linux/module.h>
15 #include <linux/init.h>
16 #include <linux/poll.h>
17 #include <linux/vmalloc.h>
18 #include <linux/slab.h>
19 #include <linux/pci.h>
21 #include "hysdn_defs.h"
23 static struct pci_device_id hysdn_pci_tbl[] = {
24 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_METRO},
25 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2},
26 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_ERGO},
27 {PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX, PCI_ANY_ID, PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO},
28 { } /* Terminating entry */
30 MODULE_DEVICE_TABLE(pci, hysdn_pci_tbl);
31 MODULE_DESCRIPTION("ISDN4Linux: Driver for HYSDN cards");
32 MODULE_AUTHOR("Werner Cornelius");
33 MODULE_LICENSE("GPL");
35 static char *hysdn_init_revision = "$Revision: 1.6.6.6 $";
36 static int cardmax; /* number of found cards */
37 hysdn_card *card_root = NULL; /* pointer to first card */
39 /**********************************************/
40 /* table assigning PCI-sub ids to board types */
41 /* the last entry contains all 0 */
42 /**********************************************/
44 word subid; /* PCI sub id */
45 uchar cardtyp; /* card type assigned */
49 PCI_SUBDEVICE_ID_HYPERCOPE_METRO, BD_METRO
52 PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2, BD_CHAMP2
55 PCI_SUBDEVICE_ID_HYPERCOPE_ERGO, BD_ERGO
58 PCI_SUBDEVICE_ID_HYPERCOPE_OLD_ERGO, BD_ERGO
62 } /* terminating entry */
66 /*********************************************************************/
67 /* search_cards searches for available cards in the pci config data. */
68 /* If a card is found, the card structure is allocated and the cards */
69 /* ressources are reserved. cardmax is incremented. */
70 /*********************************************************************/
74 struct pci_dev *akt_pcidev = NULL;
75 hysdn_card *card, *card_last;
80 while ((akt_pcidev = pci_find_device(PCI_VENDOR_ID_HYPERCOPE, PCI_DEVICE_ID_HYPERCOPE_PLX,
81 akt_pcidev)) != NULL) {
82 if (pci_enable_device(akt_pcidev))
85 if (!(card = kmalloc(sizeof(hysdn_card), GFP_KERNEL))) {
86 printk(KERN_ERR "HYSDN: unable to alloc device mem \n");
89 memset(card, 0, sizeof(hysdn_card));
90 card->myid = cardmax; /* set own id */
91 card->bus = akt_pcidev->bus->number;
92 card->devfn = akt_pcidev->devfn; /* slot + function */
93 card->subsysid = akt_pcidev->subsystem_device;
94 card->irq = akt_pcidev->irq;
95 card->iobase = pci_resource_start(akt_pcidev, PCI_REG_PLX_IO_BASE);
96 card->plxbase = pci_resource_start(akt_pcidev, PCI_REG_PLX_MEM_BASE);
97 card->membase = pci_resource_start(akt_pcidev, PCI_REG_MEMORY_BASE);
98 card->brdtype = BD_NONE; /* unknown */
99 card->debug_flags = DEF_DEB_FLAGS; /* set default debug */
100 card->faxchans = 0; /* default no fax channels */
101 card->bchans = 2; /* and 2 b-channels */
102 for (i = 0; pci_subid_map[i].subid; i++)
103 if (pci_subid_map[i].subid == card->subsysid) {
104 card->brdtype = pci_subid_map[i].cardtyp;
107 if (card->brdtype != BD_NONE) {
108 if (ergo_inithardware(card)) {
109 printk(KERN_WARNING "HYSDN: card at io 0x%04x already in use\n", card->iobase);
114 printk(KERN_WARNING "HYSDN: unknown card id 0x%04x\n", card->subsysid);
115 kfree(card); /* release mem */
119 card->next = NULL; /*end of chain */
121 card_last->next = card; /* pointer to next card */
124 card_last = card; /* new chain end */
128 /************************************************************************************/
129 /* free_resources frees the acquired PCI resources and returns the allocated memory */
130 /************************************************************************************/
138 if (card->releasehardware)
139 card->releasehardware(card); /* free all hardware resources */
140 card_root = card_root->next; /* remove card from chain */
141 kfree(card); /* return mem */
143 } /* while card_root */
144 } /* free_resources */
146 /**************************************************************************/
147 /* stop_cards disables (hardware resets) all cards and disables interrupt */
148 /**************************************************************************/
154 card = card_root; /* first in chain */
157 card->stopcard(card);
158 card = card->next; /* remove card from chain */
163 /****************************************************************************/
164 /* The module startup and shutdown code. Only compiled when used as module. */
165 /* Using the driver as module is always advisable, because the booting */
166 /* image becomes smaller and the driver code is only loaded when needed. */
167 /* Additionally newer versions may be activated without rebooting. */
168 /****************************************************************************/
170 /******************************************************/
171 /* extract revision number from string for log output */
172 /******************************************************/
174 hysdn_getrev(const char *revision)
179 if ((p = strchr(revision, ':'))) {
181 p = strchr(rev, '$');
189 /****************************************************************************/
190 /* init_module is called once when the module is loaded to do all necessary */
191 /* things like autodetect... */
192 /* If the return value of this function is 0 the init has been successful */
193 /* and the module is added to the list in /proc/modules, otherwise an error */
194 /* is assumed and the module will not be kept in memory. */
195 /****************************************************************************/
201 strcpy(tmp, hysdn_init_revision);
202 printk(KERN_NOTICE "HYSDN: module Rev: %s loaded\n", hysdn_getrev(tmp));
203 strcpy(tmp, hysdn_net_revision);
204 printk(KERN_NOTICE "HYSDN: network interface Rev: %s \n", hysdn_getrev(tmp));
206 printk(KERN_INFO "HYSDN: %d card(s) found.\n", cardmax);
208 if (hysdn_procconf_init()) {
209 free_resources(); /* proc file_sys not created */
212 #ifdef CONFIG_HYSDN_CAPI
215 printk(KERN_ERR "HYCAPI: init failed\n");
219 #endif /* CONFIG_HYSDN_CAPI */
220 return (0); /* no error */
224 /***********************************************************************/
225 /* cleanup_module is called when the module is released by the kernel. */
226 /* The routine is only called if init_module has been successful and */
227 /* the module counter has a value of 0. Otherwise this function will */
228 /* not be called. This function must release all resources still allo- */
229 /* cated as after the return from this function the module code will */
230 /* be removed from memory. */
231 /***********************************************************************/
235 #ifdef CONFIG_HYSDN_CAPI
237 #endif /* CONFIG_HYSDN_CAPI */
239 #ifdef CONFIG_HYSDN_CAPI
240 card = card_root; /* first in chain */
242 hycapi_capi_release(card);
243 card = card->next; /* remove card from chain */
246 #endif /* CONFIG_HYSDN_CAPI */
247 hysdn_procconf_release();
249 printk(KERN_NOTICE "HYSDN: module unloaded\n");
250 } /* cleanup_module */
252 module_init(hysdn_init);
253 module_exit(hysdn_exit);