Release 4.7 drivers/isdn/hardware/avm/b1isa.c

/* $Id: b1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
 *
 * Module for AVM B1 ISA-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/capi.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <linux/isdn/capicmd.h>
#include <linux/isdn/capiutil.h>
#include <linux/isdn/capilli.h>
#include "avmcard.h"

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


static char *revision = "$Revision: 1.1.2.3 $";

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

MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 ISA card");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");

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



static void b1isa_remove(struct pci_dev *pdev)
{
	avmctrl_info *cinfo = pci_get_drvdata(pdev);
	avmcard *card;

	if (!cinfo)
		return;

	card = cinfo->card;

	b1_reset(card->port);
	b1_reset(card->port);

	detach_capi_ctr(&cinfo->capi_ctrl);
	free_irq(card->irq, card);
	release_region(card->port, AVMB1_PORTLEN);
	b1_free_card(card);
}

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

static char *b1isa_procinfo(struct capi_ctr *ctrl);



static int b1isa_probe(struct pci_dev *pdev)
{
	avmctrl_info *cinfo;
	avmcard *card;
	int retval;

	card = b1_alloc_card(1);
	if (!card) {
		printk(KERN_WARNING "b1isa: no memory.\n");
		retval = -ENOMEM;
		goto err;
	}

	cinfo = card->ctrlinfo;

	card->port = pci_resource_start(pdev, 0);
	card->irq = pdev->irq;
	card->cardtype = avm_b1isa;
	sprintf(card->name, "b1isa-%x", card->port);

	if (card->port != 0x150 && card->port != 0x250
	    && card->port != 0x300 && card->port != 0x340) {
		printk(KERN_WARNING "b1isa: invalid port 0x%x.\n", card->port);
		retval = -EINVAL;
		goto err_free;
	}
	if (b1_irq_table[card->irq & 0xf] == 0) {
		printk(KERN_WARNING "b1isa: irq %d not valid.\n", card->irq);
		retval = -EINVAL;
		goto err_free;
	}
	if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
		printk(KERN_WARNING "b1isa: ports 0x%03x-0x%03x in use.\n",
		       card->port, card->port + AVMB1_PORTLEN);
		retval = -EBUSY;
		goto err_free;
	}
	retval = request_irq(card->irq, b1_interrupt, 0, card->name, card);
	if (retval) {
		printk(KERN_ERR "b1isa: unable to get IRQ %d.\n", card->irq);
		goto err_release_region;
	}
	b1_reset(card->port);
	if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
		printk(KERN_NOTICE "b1isa: 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   = "b1isa";
	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      = b1isa_procinfo;
	cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops;
	strcpy(cinfo->capi_ctrl.name, card->name);

	retval = attach_capi_ctr(&cinfo->capi_ctrl);
	if (retval) {
		printk(KERN_ERR "b1isa: attach controller failed.\n");
		goto err_free_irq;
	}

	printk(KERN_INFO "b1isa: AVM B1 ISA at i/o %#x, irq %d, revision %d\n",
	       card->port, card->irq, card->revision);

	pci_set_drvdata(pdev, cinfo);
	return 0;

err_free_irq:
	free_irq(card->irq, card);
err_release_region:
	release_region(card->port, AVMB1_PORTLEN);
err_free:
	b1_free_card(card);
err:
	return retval;
}

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static char *b1isa_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;
}

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


#define MAX_CARDS 4

static struct pci_dev isa_dev[MAX_CARDS];

static int io[MAX_CARDS];

static int irq[MAX_CARDS];

module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
MODULE_PARM_DESC(io, "I/O base address(es)");
MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");



static int b1isa_add_card(struct capi_driver *driver, capicardparams *data)
{
	int i;

	for (i = 0; i < MAX_CARDS; i++) {
		if (isa_dev[i].resource[0].start)
			continue;

		isa_dev[i].resource[0].start = data->port;
		isa_dev[i].irq = data->irq;

		if (b1isa_probe(&isa_dev[i]) == 0)
			return 0;
	}
	return -ENODEV;
}

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static struct capi_driver capi_driver_b1isa = {
	.name		= "b1isa",
	.revision	= "1.0",
	.add_card       = b1isa_add_card,
};



static int __init b1isa_init(void)
{
	char *p;
	char rev[32];
	int i;

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

	for (i = 0; i < MAX_CARDS; i++) {
		if (!io[i])
			break;

		isa_dev[i].resource[0].start = io[i];
		isa_dev[i].irq = irq[i];

		if (b1isa_probe(&isa_dev[i]) != 0)
			return -ENODEV;
	}

	strlcpy(capi_driver_b1isa.revision, rev, 32);
	register_capi_driver(&capi_driver_b1isa);
	printk(KERN_INFO "b1isa: revision %s\n", rev);

	return 0;
}

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static void __exit b1isa_exit(void)
{
	int i;

	for (i = 0; i < MAX_CARDS; i++) {
		if (isa_dev[i].resource[0].start)
			b1isa_remove(&isa_dev[i]);
	}
	unregister_capi_driver(&capi_driver_b1isa);
}

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module_init(b1isa_init);

module_exit(b1isa_exit);
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Directory: drivers/isdn/hardware/avm

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