234 lines
6.3 KiB
C
234 lines
6.3 KiB
C
/*======================================================================
|
|
|
|
An elsa_cs PCMCIA client driver
|
|
|
|
This driver is for the Elsa PCM ISDN Cards, i.e. the MicroLink
|
|
|
|
|
|
The contents of this file are subject to the Mozilla Public
|
|
License Version 1.1 (the "License"); you may not use this file
|
|
except in compliance with the License. You may obtain a copy of
|
|
the License at http://www.mozilla.org/MPL/
|
|
|
|
Software distributed under the License is distributed on an "AS
|
|
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
implied. See the License for the specific language governing
|
|
rights and limitations under the License.
|
|
|
|
The initial developer of the original code is David A. Hinds
|
|
<dahinds@users.sourceforge.net>. Portions created by David A. Hinds
|
|
are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
|
|
|
|
Modifications from dummy_cs.c are Copyright (C) 1999-2001 Klaus
|
|
Lichtenwalder <Lichtenwalder@ACM.org>. All Rights Reserved.
|
|
|
|
Alternatively, the contents of this file may be used under the
|
|
terms of the GNU General Public License version 2 (the "GPL"), in
|
|
which case the provisions of the GPL are applicable instead of the
|
|
above. If you wish to allow the use of your version of this file
|
|
only under the terms of the GPL and not to allow others to use
|
|
your version of this file under the MPL, indicate your decision
|
|
by deleting the provisions above and replace them with the notice
|
|
and other provisions required by the GPL. If you do not delete
|
|
the provisions above, a recipient may use your version of this
|
|
file under either the MPL or the GPL.
|
|
|
|
======================================================================*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/ioport.h>
|
|
#include <asm/io.h>
|
|
#include <asm/system.h>
|
|
|
|
#include <pcmcia/cistpl.h>
|
|
#include <pcmcia/cisreg.h>
|
|
#include <pcmcia/ds.h>
|
|
#include "hisax_cfg.h"
|
|
|
|
MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Elsa PCM cards");
|
|
MODULE_AUTHOR("Klaus Lichtenwalder");
|
|
MODULE_LICENSE("Dual MPL/GPL");
|
|
|
|
|
|
/*====================================================================*/
|
|
|
|
/* Parameters that can be set with 'insmod' */
|
|
|
|
static int protocol = 2; /* EURO-ISDN Default */
|
|
module_param(protocol, int, 0);
|
|
|
|
static int elsa_cs_config(struct pcmcia_device *link) __devinit ;
|
|
static void elsa_cs_release(struct pcmcia_device *link);
|
|
static void elsa_cs_detach(struct pcmcia_device *p_dev) __devexit;
|
|
|
|
typedef struct local_info_t {
|
|
struct pcmcia_device *p_dev;
|
|
int busy;
|
|
int cardnr;
|
|
} local_info_t;
|
|
|
|
static int __devinit elsa_cs_probe(struct pcmcia_device *link)
|
|
{
|
|
local_info_t *local;
|
|
|
|
dev_dbg(&link->dev, "elsa_cs_attach()\n");
|
|
|
|
/* Allocate space for private device-specific data */
|
|
local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
|
|
if (!local) return -ENOMEM;
|
|
|
|
local->p_dev = link;
|
|
link->priv = local;
|
|
|
|
local->cardnr = -1;
|
|
|
|
return elsa_cs_config(link);
|
|
} /* elsa_cs_attach */
|
|
|
|
static void __devexit elsa_cs_detach(struct pcmcia_device *link)
|
|
{
|
|
local_info_t *info = link->priv;
|
|
|
|
dev_dbg(&link->dev, "elsa_cs_detach(0x%p)\n", link);
|
|
|
|
info->busy = 1;
|
|
elsa_cs_release(link);
|
|
|
|
kfree(info);
|
|
} /* elsa_cs_detach */
|
|
|
|
static int elsa_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
|
|
{
|
|
int j;
|
|
|
|
p_dev->io_lines = 3;
|
|
p_dev->resource[0]->end = 8;
|
|
p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH;
|
|
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
|
|
|
|
if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) {
|
|
printk(KERN_INFO "(elsa_cs: looks like the 96 model)\n");
|
|
if (!pcmcia_request_io(p_dev))
|
|
return 0;
|
|
} else {
|
|
printk(KERN_INFO "(elsa_cs: looks like the 97 model)\n");
|
|
for (j = 0x2f0; j > 0x100; j -= 0x10) {
|
|
p_dev->resource[0]->start = j;
|
|
if (!pcmcia_request_io(p_dev))
|
|
return 0;
|
|
}
|
|
}
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int __devinit elsa_cs_config(struct pcmcia_device *link)
|
|
{
|
|
local_info_t *dev;
|
|
int i;
|
|
IsdnCard_t icard;
|
|
|
|
dev_dbg(&link->dev, "elsa_config(0x%p)\n", link);
|
|
dev = link->priv;
|
|
|
|
link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
|
|
|
|
i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL);
|
|
if (i != 0)
|
|
goto failed;
|
|
|
|
if (!link->irq)
|
|
goto failed;
|
|
|
|
i = pcmcia_enable_device(link);
|
|
if (i != 0)
|
|
goto failed;
|
|
|
|
icard.para[0] = link->irq;
|
|
icard.para[1] = link->resource[0]->start;
|
|
icard.protocol = protocol;
|
|
icard.typ = ISDN_CTYPE_ELSA_PCMCIA;
|
|
|
|
i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard);
|
|
if (i < 0) {
|
|
printk(KERN_ERR "elsa_cs: failed to initialize Elsa "
|
|
"PCMCIA %d with %pR\n", i, link->resource[0]);
|
|
elsa_cs_release(link);
|
|
} else
|
|
((local_info_t*)link->priv)->cardnr = i;
|
|
|
|
return 0;
|
|
failed:
|
|
elsa_cs_release(link);
|
|
return -ENODEV;
|
|
} /* elsa_cs_config */
|
|
|
|
static void elsa_cs_release(struct pcmcia_device *link)
|
|
{
|
|
local_info_t *local = link->priv;
|
|
|
|
dev_dbg(&link->dev, "elsa_cs_release(0x%p)\n", link);
|
|
|
|
if (local) {
|
|
if (local->cardnr >= 0) {
|
|
/* no unregister function with hisax */
|
|
HiSax_closecard(local->cardnr);
|
|
}
|
|
}
|
|
|
|
pcmcia_disable_device(link);
|
|
} /* elsa_cs_release */
|
|
|
|
static int elsa_suspend(struct pcmcia_device *link)
|
|
{
|
|
local_info_t *dev = link->priv;
|
|
|
|
dev->busy = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int elsa_resume(struct pcmcia_device *link)
|
|
{
|
|
local_info_t *dev = link->priv;
|
|
|
|
dev->busy = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct pcmcia_device_id elsa_ids[] = {
|
|
PCMCIA_DEVICE_PROD_ID12("ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", 0x983de2c4, 0x333ba257),
|
|
PCMCIA_DEVICE_PROD_ID12("ELSA GmbH, Aachen", "MicroLink ISDN/MC ", 0x639e5718, 0x333ba257),
|
|
PCMCIA_DEVICE_NULL
|
|
};
|
|
MODULE_DEVICE_TABLE(pcmcia, elsa_ids);
|
|
|
|
static struct pcmcia_driver elsa_cs_driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "elsa_cs",
|
|
.probe = elsa_cs_probe,
|
|
.remove = __devexit_p(elsa_cs_detach),
|
|
.id_table = elsa_ids,
|
|
.suspend = elsa_suspend,
|
|
.resume = elsa_resume,
|
|
};
|
|
|
|
static int __init init_elsa_cs(void)
|
|
{
|
|
return pcmcia_register_driver(&elsa_cs_driver);
|
|
}
|
|
|
|
static void __exit exit_elsa_cs(void)
|
|
{
|
|
pcmcia_unregister_driver(&elsa_cs_driver);
|
|
}
|
|
|
|
module_init(init_elsa_cs);
|
|
module_exit(exit_elsa_cs);
|