Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-2.6.git] / drivers / isdn / hardware / avm / b1pcmcia.c
1 /* $Id: b1pcmcia.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
2  * 
3  * Module for AVM B1/M1/M2 PCMCIA-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/init.h>
20 #include <asm/io.h>
21 #include <linux/capi.h>
22 #include <linux/b1pcmcia.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: 1.1.2.2 $";
31
32 /* ------------------------------------------------------------- */
33
34 MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM PCMCIA cards");
35 MODULE_AUTHOR("Carsten Paeth");
36 MODULE_LICENSE("GPL");
37
38 /* ------------------------------------------------------------- */
39
40 static void b1pcmcia_remove_ctr(struct capi_ctr *ctrl)
41 {
42         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
43         avmcard *card = cinfo->card;
44         unsigned int port = card->port;
45
46         b1_reset(port);
47         b1_reset(port);
48
49         detach_capi_ctr(ctrl);
50         free_irq(card->irq, card);
51         b1_free_card(card);
52 }
53
54 /* ------------------------------------------------------------- */
55
56 static LIST_HEAD(cards);
57
58 static char *b1pcmcia_procinfo(struct capi_ctr *ctrl);
59
60 static int b1pcmcia_add_card(unsigned int port, unsigned irq,
61                              enum avmcardtype cardtype)
62 {
63         avmctrl_info *cinfo;
64         avmcard *card;
65         char *cardname;
66         int retval;
67
68         card = b1_alloc_card(1);
69         if (!card) {
70                 printk(KERN_WARNING "b1pcmcia: no memory.\n");
71                 retval = -ENOMEM;
72                 goto err;
73         }
74         cinfo = card->ctrlinfo;
75
76         switch (cardtype) {
77                 case avm_m1: sprintf(card->name, "m1-%x", port); break;
78                 case avm_m2: sprintf(card->name, "m2-%x", port); break;
79                 default: sprintf(card->name, "b1pcmcia-%x", port); break;
80         }
81         card->port = port;
82         card->irq = irq;
83         card->cardtype = cardtype;
84
85         retval = request_irq(card->irq, b1_interrupt, IRQF_SHARED, card->name, card);
86         if (retval) {
87                 printk(KERN_ERR "b1pcmcia: unable to get IRQ %d.\n",
88                        card->irq);
89                 retval = -EBUSY;
90                 goto err_free;
91         }
92         b1_reset(card->port);
93         if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
94                 printk(KERN_NOTICE "b1pcmcia: NO card at 0x%x (%d)\n",
95                        card->port, retval);
96                 retval = -ENODEV;
97                 goto err_free_irq;
98         }
99         b1_reset(card->port);
100         b1_getrevision(card);
101
102         cinfo->capi_ctrl.owner         = THIS_MODULE;
103         cinfo->capi_ctrl.driver_name   = "b1pcmcia";
104         cinfo->capi_ctrl.driverdata    = cinfo;
105         cinfo->capi_ctrl.register_appl = b1_register_appl;
106         cinfo->capi_ctrl.release_appl  = b1_release_appl;
107         cinfo->capi_ctrl.send_message  = b1_send_message;
108         cinfo->capi_ctrl.load_firmware = b1_load_firmware;
109         cinfo->capi_ctrl.reset_ctr     = b1_reset_ctr;
110         cinfo->capi_ctrl.procinfo      = b1pcmcia_procinfo;
111         cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops;
112         strcpy(cinfo->capi_ctrl.name, card->name);
113
114         retval = attach_capi_ctr(&cinfo->capi_ctrl);
115         if (retval) {
116                 printk(KERN_ERR "b1pcmcia: attach controller failed.\n");
117                 goto err_free_irq;
118         }
119         switch (cardtype) {
120                 case avm_m1: cardname = "M1"; break;
121                 case avm_m2: cardname = "M2"; break;
122                 default    : cardname = "B1 PCMCIA"; break;
123         }
124
125         printk(KERN_INFO "b1pcmcia: AVM %s at i/o %#x, irq %d, revision %d\n",
126                cardname, card->port, card->irq, card->revision);
127
128         list_add(&card->list, &cards);
129         return cinfo->capi_ctrl.cnr;
130
131  err_free_irq:
132         free_irq(card->irq, card);
133  err_free:
134         b1_free_card(card);
135  err:
136         return retval;
137 }
138
139 /* ------------------------------------------------------------- */
140
141 static char *b1pcmcia_procinfo(struct capi_ctr *ctrl)
142 {
143         avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
144
145         if (!cinfo)
146                 return "";
147         sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d",
148                 cinfo->cardname[0] ? cinfo->cardname : "-",
149                 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
150                 cinfo->card ? cinfo->card->port : 0x0,
151                 cinfo->card ? cinfo->card->irq : 0,
152                 cinfo->card ? cinfo->card->revision : 0
153                 );
154         return cinfo->infobuf;
155 }
156
157 /* ------------------------------------------------------------- */
158
159 int b1pcmcia_addcard_b1(unsigned int port, unsigned irq)
160 {
161         return b1pcmcia_add_card(port, irq, avm_b1pcmcia);
162 }
163
164 int b1pcmcia_addcard_m1(unsigned int port, unsigned irq)
165 {
166         return b1pcmcia_add_card(port, irq, avm_m1);
167 }
168
169 int b1pcmcia_addcard_m2(unsigned int port, unsigned irq)
170 {
171         return b1pcmcia_add_card(port, irq, avm_m2);
172 }
173
174 int b1pcmcia_delcard(unsigned int port, unsigned irq)
175 {
176         struct list_head *l;
177         avmcard *card;
178         
179         list_for_each(l, &cards) {
180                 card = list_entry(l, avmcard, list);
181                 if (card->port == port && card->irq == irq) {
182                         b1pcmcia_remove_ctr(&card->ctrlinfo[0].capi_ctrl);
183                         return 0;
184                 }
185         }
186         return -ESRCH;
187 }
188
189 EXPORT_SYMBOL(b1pcmcia_addcard_b1);
190 EXPORT_SYMBOL(b1pcmcia_addcard_m1);
191 EXPORT_SYMBOL(b1pcmcia_addcard_m2);
192 EXPORT_SYMBOL(b1pcmcia_delcard);
193
194 static struct capi_driver capi_driver_b1pcmcia = {
195         .name           = "b1pcmcia",
196         .revision       = "1.0",
197 };
198
199 static int __init b1pcmcia_init(void)
200 {
201         char *p;
202         char rev[32];
203
204         if ((p = strchr(revision, ':')) != NULL && p[1]) {
205                 strlcpy(rev, p + 2, 32);
206                 if ((p = strchr(rev, '$')) != NULL && p > rev)
207                    *(p-1) = 0;
208         } else
209                 strcpy(rev, "1.0");
210
211         strlcpy(capi_driver_b1pcmcia.revision, rev, 32);
212         register_capi_driver(&capi_driver_b1pcmcia);
213         printk(KERN_INFO "b1pci: revision %s\n", rev);
214
215         return 0;
216 }
217
218 static void __exit b1pcmcia_exit(void)
219 {
220         unregister_capi_driver(&capi_driver_b1pcmcia);
221 }
222
223 module_init(b1pcmcia_init);
224 module_exit(b1pcmcia_exit);