mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-28 07:13:34 +00:00
2262054e74
What's worse than no comment? A wrong comment. Several PCMCIA device drivers contained the same comments, which were based on how the PCMCIA subsystem worked in the old days of 2.4., and which were originally part of a "dummy_cs" driver. These comments no longer matched at all what is happening now, and therefore should be removed. Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
179 lines
4.3 KiB
C
179 lines
4.3 KiB
C
/* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $
|
|
*
|
|
* A PCMCIA client driver for AVM B1/M1/M2
|
|
*
|
|
* 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/init.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/string.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/major.h>
|
|
#include <asm/io.h>
|
|
#include <asm/system.h>
|
|
|
|
#include <pcmcia/cistpl.h>
|
|
#include <pcmcia/ciscode.h>
|
|
#include <pcmcia/ds.h>
|
|
#include <pcmcia/cisreg.h>
|
|
|
|
#include <linux/skbuff.h>
|
|
#include <linux/capi.h>
|
|
#include <linux/b1lli.h>
|
|
#include <linux/b1pcmcia.h>
|
|
|
|
/*====================================================================*/
|
|
|
|
MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
|
|
MODULE_AUTHOR("Carsten Paeth");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*====================================================================*/
|
|
|
|
static int avmcs_config(struct pcmcia_device *link);
|
|
static void avmcs_release(struct pcmcia_device *link);
|
|
static void avmcs_detach(struct pcmcia_device *p_dev);
|
|
|
|
static int avmcs_probe(struct pcmcia_device *p_dev)
|
|
{
|
|
/* General socket configuration */
|
|
p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
|
|
p_dev->config_index = 1;
|
|
p_dev->config_regs = PRESENT_OPTION;
|
|
|
|
return avmcs_config(p_dev);
|
|
} /* avmcs_attach */
|
|
|
|
|
|
static void avmcs_detach(struct pcmcia_device *link)
|
|
{
|
|
avmcs_release(link);
|
|
} /* avmcs_detach */
|
|
|
|
static int avmcs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
|
|
{
|
|
p_dev->resource[0]->end = 16;
|
|
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
|
|
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
|
|
|
|
return pcmcia_request_io(p_dev);
|
|
}
|
|
|
|
static int avmcs_config(struct pcmcia_device *link)
|
|
{
|
|
int i = -1;
|
|
char devname[128];
|
|
int cardtype;
|
|
int (*addcard)(unsigned int port, unsigned irq);
|
|
|
|
devname[0] = 0;
|
|
if (link->prod_id[1])
|
|
strlcpy(devname, link->prod_id[1], sizeof(devname));
|
|
|
|
/*
|
|
* find IO port
|
|
*/
|
|
if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
|
|
return -ENODEV;
|
|
|
|
do {
|
|
if (!link->irq) {
|
|
/* undo */
|
|
pcmcia_disable_device(link);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* configure the PCMCIA socket
|
|
*/
|
|
i = pcmcia_enable_device(link);
|
|
if (i != 0) {
|
|
pcmcia_disable_device(link);
|
|
break;
|
|
}
|
|
|
|
} while (0);
|
|
|
|
if (devname[0]) {
|
|
char *s = strrchr(devname, ' ');
|
|
if (!s)
|
|
s = devname;
|
|
else s++;
|
|
if (strcmp("M1", s) == 0) {
|
|
cardtype = AVM_CARDTYPE_M1;
|
|
} else if (strcmp("M2", s) == 0) {
|
|
cardtype = AVM_CARDTYPE_M2;
|
|
} else {
|
|
cardtype = AVM_CARDTYPE_B1;
|
|
}
|
|
} else
|
|
cardtype = AVM_CARDTYPE_B1;
|
|
|
|
/* If any step failed, release any partially configured state */
|
|
if (i != 0) {
|
|
avmcs_release(link);
|
|
return -ENODEV;
|
|
}
|
|
|
|
|
|
switch (cardtype) {
|
|
case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
|
|
case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
|
|
default:
|
|
case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
|
|
}
|
|
if ((i = (*addcard)(link->resource[0]->start, link->irq)) < 0) {
|
|
dev_err(&link->dev,
|
|
"avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
|
|
(unsigned int) link->resource[0]->start, link->irq);
|
|
avmcs_release(link);
|
|
return -ENODEV;
|
|
}
|
|
return 0;
|
|
|
|
} /* avmcs_config */
|
|
|
|
|
|
static void avmcs_release(struct pcmcia_device *link)
|
|
{
|
|
b1pcmcia_delcard(link->resource[0]->start, link->irq);
|
|
pcmcia_disable_device(link);
|
|
} /* avmcs_release */
|
|
|
|
|
|
static struct pcmcia_device_id avmcs_ids[] = {
|
|
PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
|
|
PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
|
|
PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
|
|
PCMCIA_DEVICE_NULL
|
|
};
|
|
MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
|
|
|
|
static struct pcmcia_driver avmcs_driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "avm_cs",
|
|
.probe = avmcs_probe,
|
|
.remove = avmcs_detach,
|
|
.id_table = avmcs_ids,
|
|
};
|
|
|
|
static int __init avmcs_init(void)
|
|
{
|
|
return pcmcia_register_driver(&avmcs_driver);
|
|
}
|
|
|
|
static void __exit avmcs_exit(void)
|
|
{
|
|
pcmcia_unregister_driver(&avmcs_driver);
|
|
}
|
|
|
|
module_init(avmcs_init);
|
|
module_exit(avmcs_exit);
|