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isdn4linux/drivers/isdn/avmb1/b1pcmcia.c

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/*
* $Id$
*
* Module for AVM B1/M1/M2 PCMCIA-card.
*
* (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
*
* $Log$
* Revision 1.13 2001/03/15 09:03:32 kai
* spelling fixes from KERNEL_2_4
* compilation warning fixes from KERNEL_2_4
* sedlbauer PCMCIA support module
*
* Revision 1.12 2000/11/23 20:45:14 kai
* fixed module_init/exit stuff
* Note: compiled-in kernel doesn't work pre 2.2.18 anymore.
*
* Revision 1.11 2000/11/01 14:05:02 calle
* - use module_init/module_exit from linux/init.h.
* - all static struct variables are initialized with "membername:" now.
* - avm_cs.c, let it work with newer pcmcia-cs.
*
* Revision 1.10 2000/05/06 00:52:36 kai
* merged changes from kernel tree
* fixed timer and net_device->name breakage
*
* Revision 1.9 2000/04/03 13:29:24 calle
* make Tim Waugh happy (module unload races in 2.3.99-pre3).
* no real problem there, but now it is much cleaner ...
*
* Revision 1.8 2000/03/06 18:00:23 calle
* - Middleware extention now working with 2.3.49 (capifs).
* - Fixed typos in debug section of capi.c
* - Bugfix: Makefile corrected for b1pcmcia.c
*
* Revision 1.7 2000/02/02 18:36:03 calle
* - Modules are now locked while init_module is running
* - fixed problem with memory mapping if address is not aligned
*
* Revision 1.6 2000/01/25 14:37:39 calle
* new message after successful detection including card revision and
* used resources.
*
* Revision 1.5 1999/11/05 16:38:01 calle
* Cleanups before kernel 2.4:
* - Changed all messages to use card->name or driver->name instead of
* constant string.
* - Moved some data from struct avmcard into new struct avmctrl_info.
* Changed all lowlevel capi driver to match the new structur.
*
* Revision 1.4 1999/08/22 20:26:26 calle
* backported changes from kernel 2.3.14:
* - several #include "config.h" gone, others come.
* - "struct device" changed to "struct net_device" in 2.3.14, added a
* define in isdn_compat.h for older kernel versions.
*
* Revision 1.3 1999/07/09 15:05:41 keil
* compat.h is now isdn_compat.h
*
* Revision 1.2 1999/07/05 15:09:51 calle
* - renamed "appl_release" to "appl_released".
* - version und profile data now cleared on controller reset
* - extended /proc interface, to allow driver and controller specific
* informations to include by driver hackers.
*
* Revision 1.1 1999/07/01 15:26:30 calle
* complete new version (I love it):
* + new hardware independed "capi_driver" interface that will make it easy to:
* - support other controllers with CAPI-2.0 (i.e. USB Controller)
* - write a CAPI-2.0 for the passive cards
* - support serial link CAPI-2.0 boxes.
* + wrote "capi_driver" for all supported cards.
* + "capi_driver" (supported cards) now have to be configured with
* make menuconfig, in the past all supported cards where included
* at once.
* + new and better informations in /proc/capi/
* + new ioctl to switch trace of capi messages per controller
* using "avmcapictrl trace [contr] on|off|...."
* + complete testcircle with all supported cards and also the
* PCMCIA cards (now patch for pcmcia-cs-3.0.13 needed) done.
*
*
*/
#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/init.h>
#include <asm/io.h>
#include <linux/capi.h>
#include <linux/b1pcmcia.h>
#include "capicmd.h"
#include "capiutil.h"
#include "capilli.h"
#include "avmcard.h"
static char *revision = "$Revision$";
/* ------------------------------------------------------------- */
MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
/* ------------------------------------------------------------- */
static struct capi_driver_interface *di;
/* ------------------------------------------------------------- */
static void b1pcmcia_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
{
avmcard *card;
card = (avmcard *) devptr;
if (!card) {
printk(KERN_WARNING "b1pcmcia: interrupt: wrong device\n");
return;
}
if (card->interrupt) {
printk(KERN_ERR "%s: reentering interrupt hander.\n",
card->name);
return;
}
card->interrupt = 1;
b1_handle_interrupt(card);
card->interrupt = 0;
}
/* ------------------------------------------------------------- */
static void b1pcmcia_remove_ctr(struct capi_ctr *ctrl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
unsigned int port = card->port;
b1_reset(port);
b1_reset(port);
di->detach_ctr(ctrl);
free_irq(card->irq, card);
/* io addrsses managent by CardServices
* release_region(card->port, AVMB1_PORTLEN);
*/
kfree(card);
MOD_DEC_USE_COUNT;
}
/* ------------------------------------------------------------- */
static int b1pcmcia_add_card(struct capi_driver *driver,
unsigned int port,
unsigned irq,
enum avmcardtype cardtype)
{
avmctrl_info *cinfo;
avmcard *card;
char *cardname;
int retval;
MOD_INC_USE_COUNT;
card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
if (!card) {
printk(KERN_WARNING "%s: no memory.\n", driver->name);
MOD_DEC_USE_COUNT;
return -ENOMEM;
}
memset(card, 0, sizeof(avmcard));
cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
if (!cinfo) {
printk(KERN_WARNING "%s: no memory.\n", driver->name);
kfree(card);
MOD_DEC_USE_COUNT;
return -ENOMEM;
}
memset(cinfo, 0, sizeof(avmctrl_info));
card->ctrlinfo = cinfo;
cinfo->card = card;
switch (cardtype) {
case avm_m1: sprintf(card->name, "m1-%x", port); break;
case avm_m2: sprintf(card->name, "m2-%x", port); break;
default: sprintf(card->name, "b1pcmcia-%x", port); break;
}
card->port = port;
card->irq = irq;
card->cardtype = cardtype;
b1_reset(card->port);
if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
driver->name, card->port, retval);
kfree(card->ctrlinfo);
kfree(card);
MOD_DEC_USE_COUNT;
return -EIO;
}
b1_reset(card->port);
b1_getrevision(card);
retval = request_irq(card->irq, b1pcmcia_interrupt, 0, card->name, card);
if (retval) {
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
driver->name, card->irq);
kfree(card->ctrlinfo);
kfree(card);
MOD_DEC_USE_COUNT;
return -EBUSY;
}
cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
if (!cinfo->capi_ctrl) {
printk(KERN_ERR "%s: attach controller failed.\n",
driver->name);
free_irq(card->irq, card);
kfree(card->ctrlinfo);
kfree(card);
MOD_DEC_USE_COUNT;
return -EBUSY;
}
switch (cardtype) {
case avm_m1: cardname = "M1"; break;
case avm_m2: cardname = "M2"; break;
default : cardname = "B1 PCMCIA"; break;
}
printk(KERN_INFO
"%s: AVM %s at i/o %#x, irq %d, revision %d\n",
driver->name, cardname, card->port, card->irq, card->revision);
return cinfo->capi_ctrl->cnr;
}
/* ------------------------------------------------------------- */
static char *b1pcmcia_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;
}
/* ------------------------------------------------------------- */
static struct capi_driver b1pcmcia_driver = {
name: "b1pcmcia",
revision: "0.0",
load_firmware: b1_load_firmware,
reset_ctr: b1_reset_ctr,
remove_ctr: b1pcmcia_remove_ctr,
register_appl: b1_register_appl,
release_appl: b1_release_appl,
send_message: b1_send_message,
procinfo: b1pcmcia_procinfo,
ctr_read_proc: b1ctl_read_proc,
driver_read_proc: 0, /* use standard driver_read_proc */
add_card: 0,
};
/* ------------------------------------------------------------- */
int b1pcmcia_addcard_b1(unsigned int port, unsigned irq)
{
return b1pcmcia_add_card(&b1pcmcia_driver, port, irq, avm_b1pcmcia);
}
int b1pcmcia_addcard_m1(unsigned int port, unsigned irq)
{
return b1pcmcia_add_card(&b1pcmcia_driver, port, irq, avm_m1);
}
int b1pcmcia_addcard_m2(unsigned int port, unsigned irq)
{
return b1pcmcia_add_card(&b1pcmcia_driver, port, irq, avm_m2);
}
int b1pcmcia_delcard(unsigned int port, unsigned irq)
{
struct capi_ctr *ctrl;
avmcard *card;
for (ctrl = b1pcmcia_driver.controller; ctrl; ctrl = ctrl->next) {
card = ((avmctrl_info *)(ctrl->driverdata))->card;
if (card->port == port && card->irq == irq) {
b1pcmcia_remove_ctr(ctrl);
return 0;
}
}
return -ESRCH;
}
EXPORT_SYMBOL(b1pcmcia_addcard_b1);
EXPORT_SYMBOL(b1pcmcia_addcard_m1);
EXPORT_SYMBOL(b1pcmcia_addcard_m2);
EXPORT_SYMBOL(b1pcmcia_delcard);
/* ------------------------------------------------------------- */
static int __init b1pcmcia_init(void)
{
struct capi_driver *driver = &b1pcmcia_driver;
char *p;
int retval = 0;
MOD_INC_USE_COUNT;
if ((p = strchr(revision, ':'))) {
strncpy(driver->revision, p + 1, sizeof(driver->revision));
p = strchr(driver->revision, '$');
*p = 0;
}
printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision);
di = attach_capi_driver(driver);
if (!di) {
printk(KERN_ERR "%s: failed to attach capi_driver\n",
driver->name);
retval = -EIO;
}
MOD_DEC_USE_COUNT;
return retval;
}
static void __exit b1pcmcia_exit(void)
{
detach_capi_driver(&b1pcmcia_driver);
}
module_init(b1pcmcia_init);
module_exit(b1pcmcia_exit);
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