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
30static char *revision = "$Revision: 1.1.2.3 $";
31
32/* ------------------------------------------------------------- */
33
34MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 ISA card");
35MODULE_AUTHOR("Carsten Paeth");
36MODULE_LICENSE("GPL");
37
38/* ------------------------------------------------------------- */
39
40static 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
61static char *b1isa_procinfo(struct capi_ctr *ctrl);
62
63static 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
139err_free_irq:
140	free_irq(card->irq, card);
141err_release_region:
142	release_region(card->port, AVMB1_PORTLEN);
143err_free:
144	b1_free_card(card);
145err:
146	return retval;
147}
148
149static 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
168static struct pci_dev isa_dev[MAX_CARDS];
169static int io[MAX_CARDS];
170static int irq[MAX_CARDS];
171
172module_param_array(io, int, NULL, 0);
173module_param_array(irq, int, NULL, 0);
174MODULE_PARM_DESC(io, "I/O base address(es)");
175MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
176
177static 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
194static struct capi_driver capi_driver_b1isa = {
195	.name		= "b1isa",
196	.revision	= "1.0",
197	.add_card       = b1isa_add_card,
198};
199
200static 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
231static 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
242module_init(b1isa_init);
243module_exit(b1isa_exit);
244