summaryrefslogtreecommitdiffstats
path: root/drivers/isdn/hardware/avm/b1pcmcia.c
blob: e479c0aef38d84aad3dc821a45b206b596fd479e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
/* $Id: b1pcmcia.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
 * 
 * Module for AVM B1/M1/M2 PCMCIA-card.
 * 
 * Copyright 1999 by Carsten Paeth <calle@calle.de>
 * 
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <asm/io.h>
#include <linux/capi.h>
#include <linux/b1pcmcia.h>
#include <linux/isdn/capicmd.h>
#include <linux/isdn/capiutil.h>
#include <linux/isdn/capilli.h>
#include "avmcard.h"

/* ------------------------------------------------------------- */

static char *revision = "$Revision: 1.1.2.2 $";

/* ------------------------------------------------------------- */

MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM PCMCIA cards");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");

/* ------------------------------------------------------------- */

static void b1pcmcia_remove_ctr(struct capi_ctr *ctrl)
{
	avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
	avmcard *card = cinfo->card;
	unsigned int port = card->port;

	b1_reset(port);
	b1_reset(port);

	detach_capi_ctr(ctrl);
	free_irq(card->irq, card);
	b1_free_card(card);
}

/* ------------------------------------------------------------- */

static LIST_HEAD(cards);

static char *b1pcmcia_procinfo(struct capi_ctr *ctrl);

static int b1pcmcia_add_card(unsigned int port, unsigned irq,
			     enum avmcardtype cardtype)
{
	avmctrl_info *cinfo;
	avmcard *card;
	char *cardname;
	int retval;

	card = b1_alloc_card(1);
	if (!card) {
		printk(KERN_WARNING "b1pcmcia: no memory.\n");
		retval = -ENOMEM;
		goto err;
	}
	cinfo = card->ctrlinfo;

	switch (cardtype) {
		case avm_m1: sprintf(card->name, "m1-%x", port); break;
		case avm_m2: sprintf(card->name, "m2-%x", port); break;
		default: sprintf(card->name, "b1pcmcia-%x", port); break;
	}
	card->port = port;
	card->irq = irq;
	card->cardtype = cardtype;

	retval = request_irq(card->irq, b1_interrupt, IRQF_SHARED, card->name, card);
	if (retval) {
		printk(KERN_ERR "b1pcmcia: unable to get IRQ %d.\n",
		       card->irq);
		retval = -EBUSY;
		goto err_free;
	}
	b1_reset(card->port);
	if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
		printk(KERN_NOTICE "b1pcmcia: NO card at 0x%x (%d)\n",
		       card->port, retval);
		retval = -ENODEV;
		goto err_free_irq;
	}
	b1_reset(card->port);
	b1_getrevision(card);

	cinfo->capi_ctrl.owner         = THIS_MODULE;
	cinfo->capi_ctrl.driver_name   = "b1pcmcia";
	cinfo->capi_ctrl.driverdata    = cinfo;
	cinfo->capi_ctrl.register_appl = b1_register_appl;
	cinfo->capi_ctrl.release_appl  = b1_release_appl;
	cinfo->capi_ctrl.send_message  = b1_send_message;
	cinfo->capi_ctrl.load_firmware = b1_load_firmware;
	cinfo->capi_ctrl.reset_ctr     = b1_reset_ctr;
	cinfo->capi_ctrl.procinfo      = b1pcmcia_procinfo;
	cinfo->capi_ctrl.ctr_read_proc = b1ctl_read_proc;
	strcpy(cinfo->capi_ctrl.name, card->name);

	retval = attach_capi_ctr(&cinfo->capi_ctrl);
	if (retval) {
		printk(KERN_ERR "b1pcmcia: attach controller failed.\n");
		goto err_free_irq;
	}
	switch (cardtype) {
		case avm_m1: cardname = "M1"; break;
		case avm_m2: cardname = "M2"; break;
		default    : cardname = "B1 PCMCIA"; break;
	}

	printk(KERN_INFO "b1pcmcia: AVM %s at i/o %#x, irq %d, revision %d\n",
	       cardname, card->port, card->irq, card->revision);

	list_add(&card->list, &cards);
	return cinfo->capi_ctrl.cnr;

 err_free_irq:
	free_irq(card->irq, card);
 err_free:
	b1_free_card(card);
 err:
	return retval;
}

/* ------------------------------------------------------------- */

static char *b1pcmcia_procinfo(struct capi_ctr *ctrl)
{
	avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);

	if (!cinfo)
		return "";
	sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d",
		cinfo->cardname[0] ? cinfo->cardname : "-",
		cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
		cinfo->card ? cinfo->card->port : 0x0,
		cinfo->card ? cinfo->card->irq : 0,
		cinfo->card ? cinfo->card->revision : 0
		);
	return cinfo->infobuf;
}

/* ------------------------------------------------------------- */

int b1pcmcia_addcard_b1(unsigned int port, unsigned irq)
{
	return b1pcmcia_add_card(port, irq, avm_b1pcmcia);
}

int b1pcmcia_addcard_m1(unsigned int port, unsigned irq)
{
	return b1pcmcia_add_card(port, irq, avm_m1);
}

int b1pcmcia_addcard_m2(unsigned int port, unsigned irq)
{
	return b1pcmcia_add_card(port, irq, avm_m2);
}

int b1pcmcia_delcard(unsigned int port, unsigned irq)
{
	struct list_head *l;
	avmcard *card;
	
	list_for_each(l, &cards) {
		card = list_entry(l, avmcard, list);
		if (card->port == port && card->irq == irq) {
			b1pcmcia_remove_ctr(&card->ctrlinfo[0].capi_ctrl);
			return 0;
		}
	}
	return -ESRCH;
}

EXPORT_SYMBOL(b1pcmcia_addcard_b1);
EXPORT_SYMBOL(b1pcmcia_addcard_m1);
EXPORT_SYMBOL(b1pcmcia_addcard_m2);
EXPORT_SYMBOL(b1pcmcia_delcard);

static struct capi_driver capi_driver_b1pcmcia = {
	.name		= "b1pcmcia",
	.revision	= "1.0",
};

static int __init b1pcmcia_init(void)
{
	char *p;
	char rev[32];

	if ((p = strchr(revision, ':')) != 0 && p[1]) {
		strlcpy(rev, p + 2, 32);
		if ((p = strchr(rev, '$')) != 0 && p > rev)
		   *(p-1) = 0;
	} else
		strcpy(rev, "1.0");

	strlcpy(capi_driver_b1pcmcia.revision, rev, 32);
	register_capi_driver(&capi_driver_b1pcmcia);
	printk(KERN_INFO "b1pci: revision %s\n", rev);

	return 0;
}

static void __exit b1pcmcia_exit(void)
{
	unregister_capi_driver(&capi_driver_b1pcmcia);
}

module_init(b1pcmcia_init);
module_exit(b1pcmcia_exit);
OpenPOWER on IntegriCloud