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/drivers/isdn/hardware/avm/b1pcmcia.c

http://github.com/mirrors/linux
C | 224 lines | 170 code | 38 blank | 16 comment | 18 complexity | 27789ab969564d8c9d9f4b1d1c0865e4 MD5 | raw file
  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
 30static char *revision = "$Revision: 1.1.2.2 $";
 31
 32/* ------------------------------------------------------------- */
 33
 34MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM PCMCIA cards");
 35MODULE_AUTHOR("Carsten Paeth");
 36MODULE_LICENSE("GPL");
 37
 38/* ------------------------------------------------------------- */
 39
 40static 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
 56static LIST_HEAD(cards);
 57
 58static char *b1pcmcia_procinfo(struct capi_ctr *ctrl);
 59
 60static 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
131err_free_irq:
132	free_irq(card->irq, card);
133err_free:
134	b1_free_card(card);
135err:
136	return retval;
137}
138
139/* ------------------------------------------------------------- */
140
141static 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
159int b1pcmcia_addcard_b1(unsigned int port, unsigned irq)
160{
161	return b1pcmcia_add_card(port, irq, avm_b1pcmcia);
162}
163
164int b1pcmcia_addcard_m1(unsigned int port, unsigned irq)
165{
166	return b1pcmcia_add_card(port, irq, avm_m1);
167}
168
169int b1pcmcia_addcard_m2(unsigned int port, unsigned irq)
170{
171	return b1pcmcia_add_card(port, irq, avm_m2);
172}
173
174int 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
189EXPORT_SYMBOL(b1pcmcia_addcard_b1);
190EXPORT_SYMBOL(b1pcmcia_addcard_m1);
191EXPORT_SYMBOL(b1pcmcia_addcard_m2);
192EXPORT_SYMBOL(b1pcmcia_delcard);
193
194static struct capi_driver capi_driver_b1pcmcia = {
195	.name		= "b1pcmcia",
196	.revision	= "1.0",
197};
198
199static 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
218static void __exit b1pcmcia_exit(void)
219{
220	unregister_capi_driver(&capi_driver_b1pcmcia);
221}
222
223module_init(b1pcmcia_init);
224module_exit(b1pcmcia_exit);