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/* $Id: teles_cs.c,v 1.1.2.2 2004/01/25 15:07:06 keil Exp $ */
/*======================================================================
A teles S0 PCMCIA client driver
Based on skeleton by David Hinds, dhinds@allegro.stanford.edu
Written by Christof Petig, christof.petig@wtal.de
Also inspired by ELSA PCMCIA driver
by Klaus Lichtenwalder <Lichtenwalder@ACM.org>
Extensions to new hisax_pcmcia by Karsten Keil
minor changes to be compatible with kernel 2.4.x
by Jan.Schubert@GMX.li
======================================================================*/
#include <linux/kernel.h>
#include <linux/module.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 Teles PCMCIA cards");
MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de");
MODULE_LICENSE("GPL");
/*====================================================================*/
/* Parameters that can be set with 'insmod' */
static int protocol = 2; /* EURO-ISDN Default */
module_param(protocol, int, 0);
static int teles_cs_config(struct pcmcia_device *link) __devinit ;
static void teles_cs_release(struct pcmcia_device *link);
static void teles_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 teles_probe(struct pcmcia_device *link)
{
local_info_t *local;
dev_dbg(&link->dev, "teles_attach()\n");
/* Allocate space for private device-specific data */
local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
if (!local) return -ENOMEM;
local->cardnr = -1;
local->p_dev = link;
link->priv = local;
link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
return teles_cs_config(link);
} /* teles_attach */
static void __devexit teles_detach(struct pcmcia_device *link)
{
local_info_t *info = link->priv;
dev_dbg(&link->dev, "teles_detach(0x%p)\n", link);
info->busy = 1;
teles_cs_release(link);
kfree(info);
} /* teles_detach */
static int teles_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
{
int j;
p_dev->io_lines = 5;
p_dev->resource[0]->end = 96;
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 "(teles_cs: looks like the 96 model)\n");
if (!pcmcia_request_io(p_dev))
return 0;
} else {
printk(KERN_INFO "(teles_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 teles_cs_config(struct pcmcia_device *link)
{
int i;
IsdnCard_t icard;
dev_dbg(&link->dev, "teles_config(0x%p)\n", link);
i = pcmcia_loop_config(link, teles_cs_configcheck, NULL);
if (i != 0)
goto cs_failed;
if (!link->irq)
goto cs_failed;
i = pcmcia_enable_device(link);
if (i != 0)
goto cs_failed;
icard.para[0] = link->irq;
icard.para[1] = link->resource[0]->start;
icard.protocol = protocol;
icard.typ = ISDN_CTYPE_TELESPCMCIA;
i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard);
if (i < 0) {
printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n",
i, (unsigned int) link->resource[0]->start);
teles_cs_release(link);
return -ENODEV;
}
((local_info_t*)link->priv)->cardnr = i;
return 0;
cs_failed:
teles_cs_release(link);
return -ENODEV;
} /* teles_cs_config */
static void teles_cs_release(struct pcmcia_device *link)
{
local_info_t *local = link->priv;
dev_dbg(&link->dev, "teles_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);
} /* teles_cs_release */
static int teles_suspend(struct pcmcia_device *link)
{
local_info_t *dev = link->priv;
dev->busy = 1;
return 0;
}
static int teles_resume(struct pcmcia_device *link)
{
local_info_t *dev = link->priv;
dev->busy = 0;
return 0;
}
static struct pcmcia_device_id teles_ids[] = {
PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119),
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, teles_ids);
static struct pcmcia_driver teles_cs_driver = {
.owner = THIS_MODULE,
.name = "teles_cs",
.probe = teles_probe,
.remove = __devexit_p(teles_detach),
.id_table = teles_ids,
.suspend = teles_suspend,
.resume = teles_resume,
};
static int __init init_teles_cs(void)
{
return pcmcia_register_driver(&teles_cs_driver);
}
static void __exit exit_teles_cs(void)
{
pcmcia_unregister_driver(&teles_cs_driver);
}
module_init(init_teles_cs);
module_exit(exit_teles_cs);
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