Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
[linux-2.6] / drivers / isdn / hardware / avm / b1isa.c
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
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
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.ctr_read_proc = b1ctl_read_proc;
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
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
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
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
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);