1 /* $Id: b1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
2 *
3 * Module for AVM B1 ISA-card.
4 *
5 * Copyright 1999 by Carsten Paeth <calle@calle.de>
6 *
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
9 *
10 */
11
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/skbuff.h>
15 #include <linux/delay.h>
16 #include <linux/mm.h>
17 #include <linux/interrupt.h>
18 #include <linux/ioport.h>
19 #include <linux/capi.h>
20 #include <linux/init.h>
21 #include <linux/pci.h>
22 #include <asm/io.h>
23 #include <linux/isdn/capicmd.h>
24 #include <linux/isdn/capiutil.h>
25 #include <linux/isdn/capilli.h>
26 #include "avmcard.h"
27
28 /* ------------------------------------------------------------- */
29
30 static char *revision = "$Revision: 1.1.2.3 $";
31
32 /* ------------------------------------------------------------- */
33
34 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 ISA card");
35 MODULE_AUTHOR("Carsten Paeth");
36 MODULE_LICENSE("GPL");
37
38 /* ------------------------------------------------------------- */
39
b1isa_remove(struct pci_dev * pdev)40 static void b1isa_remove(struct pci_dev *pdev)
41 {
42 avmctrl_info *cinfo = pci_get_drvdata(pdev);
43 avmcard *card;
44
45 if (!cinfo)
46 return;
47
48 card = cinfo->card;
49
50 b1_reset(card->port);
51 b1_reset(card->port);
52
53 detach_capi_ctr(&cinfo->capi_ctrl);
54 free_irq(card->irq, card);
55 release_region(card->port, AVMB1_PORTLEN);
56 b1_free_card(card);
57 }
58
59 /* ------------------------------------------------------------- */
60
61 static char *b1isa_procinfo(struct capi_ctr *ctrl);
62
b1isa_probe(struct pci_dev * pdev)63 static int b1isa_probe(struct pci_dev *pdev)
64 {
65 avmctrl_info *cinfo;
66 avmcard *card;
67 int retval;
68
69 card = b1_alloc_card(1);
70 if (!card) {
71 printk(KERN_WARNING "b1isa: no memory.\n");
72 retval = -ENOMEM;
73 goto err;
74 }
75
76 cinfo = card->ctrlinfo;
77
78 card->port = pci_resource_start(pdev, 0);
79 card->irq = pdev->irq;
80 card->cardtype = avm_b1isa;
81 sprintf(card->name, "b1isa-%x", card->port);
82
83 if (card->port != 0x150 && card->port != 0x250
84 && card->port != 0x300 && card->port != 0x340) {
85 printk(KERN_WARNING "b1isa: invalid port 0x%x.\n", card->port);
86 retval = -EINVAL;
87 goto err_free;
88 }
89 if (b1_irq_table[card->irq & 0xf] == 0) {
90 printk(KERN_WARNING "b1isa: irq %d not valid.\n", card->irq);
91 retval = -EINVAL;
92 goto err_free;
93 }
94 if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
95 printk(KERN_WARNING "b1isa: ports 0x%03x-0x%03x in use.\n",
96 card->port, card->port + AVMB1_PORTLEN);
97 retval = -EBUSY;
98 goto err_free;
99 }
100 retval = request_irq(card->irq, b1_interrupt, 0, card->name, card);
101 if (retval) {
102 printk(KERN_ERR "b1isa: unable to get IRQ %d.\n", card->irq);
103 goto err_release_region;
104 }
105 b1_reset(card->port);
106 if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
107 printk(KERN_NOTICE "b1isa: NO card at 0x%x (%d)\n",
108 card->port, retval);
109 retval = -ENODEV;
110 goto err_free_irq;
111 }
112 b1_reset(card->port);
113 b1_getrevision(card);
114
115 cinfo->capi_ctrl.owner = THIS_MODULE;
116 cinfo->capi_ctrl.driver_name = "b1isa";
117 cinfo->capi_ctrl.driverdata = cinfo;
118 cinfo->capi_ctrl.register_appl = b1_register_appl;
119 cinfo->capi_ctrl.release_appl = b1_release_appl;
120 cinfo->capi_ctrl.send_message = b1_send_message;
121 cinfo->capi_ctrl.load_firmware = b1_load_firmware;
122 cinfo->capi_ctrl.reset_ctr = b1_reset_ctr;
123 cinfo->capi_ctrl.procinfo = b1isa_procinfo;
124 cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops;
125 strcpy(cinfo->capi_ctrl.name, card->name);
126
127 retval = attach_capi_ctr(&cinfo->capi_ctrl);
128 if (retval) {
129 printk(KERN_ERR "b1isa: attach controller failed.\n");
130 goto err_free_irq;
131 }
132
133 printk(KERN_INFO "b1isa: AVM B1 ISA at i/o %#x, irq %d, revision %d\n",
134 card->port, card->irq, card->revision);
135
136 pci_set_drvdata(pdev, cinfo);
137 return 0;
138
139 err_free_irq:
140 free_irq(card->irq, card);
141 err_release_region:
142 release_region(card->port, AVMB1_PORTLEN);
143 err_free:
144 b1_free_card(card);
145 err:
146 return retval;
147 }
148
b1isa_procinfo(struct capi_ctr * ctrl)149 static char *b1isa_procinfo(struct capi_ctr *ctrl)
150 {
151 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
152
153 if (!cinfo)
154 return "";
155 sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d",
156 cinfo->cardname[0] ? cinfo->cardname : "-",
157 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
158 cinfo->card ? cinfo->card->port : 0x0,
159 cinfo->card ? cinfo->card->irq : 0,
160 cinfo->card ? cinfo->card->revision : 0
161 );
162 return cinfo->infobuf;
163 }
164
165 /* ------------------------------------------------------------- */
166
167 #define MAX_CARDS 4
168 static struct pci_dev isa_dev[MAX_CARDS];
169 static int io[MAX_CARDS];
170 static int irq[MAX_CARDS];
171
172 module_param_array(io, int, NULL, 0);
173 module_param_array(irq, int, NULL, 0);
174 MODULE_PARM_DESC(io, "I/O base address(es)");
175 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
176
b1isa_add_card(struct capi_driver * driver,capicardparams * data)177 static int b1isa_add_card(struct capi_driver *driver, capicardparams *data)
178 {
179 int i;
180
181 for (i = 0; i < MAX_CARDS; i++) {
182 if (isa_dev[i].resource[0].start)
183 continue;
184
185 isa_dev[i].resource[0].start = data->port;
186 isa_dev[i].irq = data->irq;
187
188 if (b1isa_probe(&isa_dev[i]) == 0)
189 return 0;
190 }
191 return -ENODEV;
192 }
193
194 static struct capi_driver capi_driver_b1isa = {
195 .name = "b1isa",
196 .revision = "1.0",
197 .add_card = b1isa_add_card,
198 };
199
b1isa_init(void)200 static int __init b1isa_init(void)
201 {
202 char *p;
203 char rev[32];
204 int i;
205
206 if ((p = strchr(revision, ':')) != NULL && p[1]) {
207 strlcpy(rev, p + 2, 32);
208 if ((p = strchr(rev, '$')) != NULL && p > rev)
209 *(p - 1) = 0;
210 } else
211 strcpy(rev, "1.0");
212
213 for (i = 0; i < MAX_CARDS; i++) {
214 if (!io[i])
215 break;
216
217 isa_dev[i].resource[0].start = io[i];
218 isa_dev[i].irq = irq[i];
219
220 if (b1isa_probe(&isa_dev[i]) != 0)
221 return -ENODEV;
222 }
223
224 strlcpy(capi_driver_b1isa.revision, rev, 32);
225 register_capi_driver(&capi_driver_b1isa);
226 printk(KERN_INFO "b1isa: revision %s\n", rev);
227
228 return 0;
229 }
230
b1isa_exit(void)231 static void __exit b1isa_exit(void)
232 {
233 int i;
234
235 for (i = 0; i < MAX_CARDS; i++) {
236 if (isa_dev[i].resource[0].start)
237 b1isa_remove(&isa_dev[i]);
238 }
239 unregister_capi_driver(&capi_driver_b1isa);
240 }
241
242 module_init(b1isa_init);
243 module_exit(b1isa_exit);
244