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1da177e4 LT |
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 | ||
1da177e4 LT |
13 | #include <linux/module.h> |
14 | #include <linux/init.h> | |
1da177e4 LT |
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[] = { | |
60cc5147 JG |
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 | ||
1da177e4 LT |
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 | ||
39 | static char *hysdn_init_revision = "$Revision: 1.6.6.6 $"; | |
aade0e82 | 40 | static int cardmax; /* number of found cards */ |
1da177e4 | 41 | hysdn_card *card_root = NULL; /* pointer to first card */ |
60cc5147 | 42 | static hysdn_card *card_last = NULL; /* pointer to first card */ |
1da177e4 LT |
43 | |
44 | ||
45 | /****************************************************************************/ | |
46 | /* The module startup and shutdown code. Only compiled when used as module. */ | |
47 | /* Using the driver as module is always advisable, because the booting */ | |
48 | /* image becomes smaller and the driver code is only loaded when needed. */ | |
49 | /* Additionally newer versions may be activated without rebooting. */ | |
50 | /****************************************************************************/ | |
51 | ||
52 | /******************************************************/ | |
53 | /* extract revision number from string for log output */ | |
54 | /******************************************************/ | |
55 | char * | |
56 | hysdn_getrev(const char *revision) | |
57 | { | |
58 | char *rev; | |
59 | char *p; | |
60 | ||
61 | if ((p = strchr(revision, ':'))) { | |
62 | rev = p + 2; | |
63 | p = strchr(rev, '$'); | |
64 | *--p = 0; | |
65 | } else | |
66 | rev = "???"; | |
67 | return rev; | |
68 | } | |
69 | ||
70 | ||
71 | /****************************************************************************/ | |
72 | /* init_module is called once when the module is loaded to do all necessary */ | |
73 | /* things like autodetect... */ | |
74 | /* If the return value of this function is 0 the init has been successful */ | |
75 | /* and the module is added to the list in /proc/modules, otherwise an error */ | |
76 | /* is assumed and the module will not be kept in memory. */ | |
77 | /****************************************************************************/ | |
60cc5147 JG |
78 | |
79 | static int __devinit hysdn_pci_init_one(struct pci_dev *akt_pcidev, | |
80 | const struct pci_device_id *ent) | |
81 | { | |
82 | hysdn_card *card; | |
83 | int rc; | |
84 | ||
85 | rc = pci_enable_device(akt_pcidev); | |
86 | if (rc) | |
87 | return rc; | |
88 | ||
89 | if (!(card = kzalloc(sizeof(hysdn_card), GFP_KERNEL))) { | |
90 | printk(KERN_ERR "HYSDN: unable to alloc device mem \n"); | |
91 | rc = -ENOMEM; | |
92 | goto err_out; | |
93 | } | |
94 | card->myid = cardmax; /* set own id */ | |
95 | card->bus = akt_pcidev->bus->number; | |
96 | card->devfn = akt_pcidev->devfn; /* slot + function */ | |
97 | card->subsysid = akt_pcidev->subsystem_device; | |
98 | card->irq = akt_pcidev->irq; | |
99 | card->iobase = pci_resource_start(akt_pcidev, PCI_REG_PLX_IO_BASE); | |
100 | card->plxbase = pci_resource_start(akt_pcidev, PCI_REG_PLX_MEM_BASE); | |
101 | card->membase = pci_resource_start(akt_pcidev, PCI_REG_MEMORY_BASE); | |
102 | card->brdtype = BD_NONE; /* unknown */ | |
103 | card->debug_flags = DEF_DEB_FLAGS; /* set default debug */ | |
104 | card->faxchans = 0; /* default no fax channels */ | |
105 | card->bchans = 2; /* and 2 b-channels */ | |
106 | card->brdtype = ent->driver_data; | |
107 | ||
108 | if (ergo_inithardware(card)) { | |
109 | printk(KERN_WARNING "HYSDN: card at io 0x%04x already in use\n", card->iobase); | |
110 | rc = -EBUSY; | |
111 | goto err_out_card; | |
112 | } | |
113 | ||
114 | cardmax++; | |
115 | card->next = NULL; /*end of chain */ | |
116 | if (card_last) | |
117 | card_last->next = card; /* pointer to next card */ | |
118 | else | |
119 | card_root = card; | |
120 | card_last = card; /* new chain end */ | |
121 | ||
122 | pci_set_drvdata(akt_pcidev, card); | |
123 | return 0; | |
124 | ||
125 | err_out_card: | |
126 | kfree(card); | |
127 | err_out: | |
128 | pci_disable_device(akt_pcidev); | |
129 | return rc; | |
130 | } | |
131 | ||
132 | static void __devexit hysdn_pci_remove_one(struct pci_dev *akt_pcidev) | |
133 | { | |
134 | hysdn_card *card = pci_get_drvdata(akt_pcidev); | |
135 | ||
136 | pci_set_drvdata(akt_pcidev, NULL); | |
137 | ||
138 | if (card->stopcard) | |
139 | card->stopcard(card); | |
140 | ||
141 | #ifdef CONFIG_HYSDN_CAPI | |
142 | hycapi_capi_release(card); | |
143 | #endif | |
144 | ||
145 | if (card->releasehardware) | |
146 | card->releasehardware(card); /* free all hardware resources */ | |
147 | ||
148 | if (card == card_root) { | |
149 | card_root = card_root->next; | |
150 | if (!card_root) | |
151 | card_last = NULL; | |
152 | } else { | |
153 | hysdn_card *tmp = card_root; | |
154 | while (tmp) { | |
155 | if (tmp->next == card) | |
156 | tmp->next = card->next; | |
157 | card_last = tmp; | |
158 | tmp = tmp->next; | |
159 | } | |
160 | } | |
161 | ||
162 | kfree(card); | |
163 | pci_disable_device(akt_pcidev); | |
164 | } | |
165 | ||
166 | static struct pci_driver hysdn_pci_driver = { | |
167 | .name = "hysdn", | |
168 | .id_table = hysdn_pci_tbl, | |
169 | .probe = hysdn_pci_init_one, | |
170 | .remove = __devexit_p(hysdn_pci_remove_one), | |
171 | }; | |
172 | ||
173 | static int hysdn_have_procfs; | |
174 | ||
1da177e4 LT |
175 | static int __init |
176 | hysdn_init(void) | |
177 | { | |
178 | char tmp[50]; | |
60cc5147 | 179 | int rc; |
1da177e4 LT |
180 | |
181 | strcpy(tmp, hysdn_init_revision); | |
182 | printk(KERN_NOTICE "HYSDN: module Rev: %s loaded\n", hysdn_getrev(tmp)); | |
183 | strcpy(tmp, hysdn_net_revision); | |
184 | printk(KERN_NOTICE "HYSDN: network interface Rev: %s \n", hysdn_getrev(tmp)); | |
60cc5147 JG |
185 | |
186 | rc = pci_register_driver(&hysdn_pci_driver); | |
187 | if (rc) | |
188 | return rc; | |
189 | ||
1da177e4 LT |
190 | printk(KERN_INFO "HYSDN: %d card(s) found.\n", cardmax); |
191 | ||
60cc5147 JG |
192 | if (!hysdn_procconf_init()) |
193 | hysdn_have_procfs = 1; | |
194 | ||
1da177e4 LT |
195 | #ifdef CONFIG_HYSDN_CAPI |
196 | if(cardmax > 0) { | |
197 | if(hycapi_init()) { | |
198 | printk(KERN_ERR "HYCAPI: init failed\n"); | |
60cc5147 JG |
199 | |
200 | if (hysdn_have_procfs) | |
201 | hysdn_procconf_release(); | |
202 | ||
203 | pci_unregister_driver(&hysdn_pci_driver); | |
204 | return -ESPIPE; | |
1da177e4 LT |
205 | } |
206 | } | |
207 | #endif /* CONFIG_HYSDN_CAPI */ | |
60cc5147 JG |
208 | |
209 | return 0; /* no error */ | |
1da177e4 LT |
210 | } /* init_module */ |
211 | ||
212 | ||
213 | /***********************************************************************/ | |
214 | /* cleanup_module is called when the module is released by the kernel. */ | |
215 | /* The routine is only called if init_module has been successful and */ | |
216 | /* the module counter has a value of 0. Otherwise this function will */ | |
217 | /* not be called. This function must release all resources still allo- */ | |
218 | /* cated as after the return from this function the module code will */ | |
219 | /* be removed from memory. */ | |
220 | /***********************************************************************/ | |
221 | static void __exit | |
222 | hysdn_exit(void) | |
223 | { | |
60cc5147 JG |
224 | if (hysdn_have_procfs) |
225 | hysdn_procconf_release(); | |
226 | ||
227 | pci_unregister_driver(&hysdn_pci_driver); | |
228 | ||
1da177e4 | 229 | #ifdef CONFIG_HYSDN_CAPI |
1da177e4 LT |
230 | hycapi_cleanup(); |
231 | #endif /* CONFIG_HYSDN_CAPI */ | |
60cc5147 | 232 | |
1da177e4 LT |
233 | printk(KERN_NOTICE "HYSDN: module unloaded\n"); |
234 | } /* cleanup_module */ | |
235 | ||
236 | module_init(hysdn_init); | |
237 | module_exit(hysdn_exit); |