hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
linux-sg2042/drivers/isdn/hardware/avm/b1isa.c

244 lines
5.9 KiB
C
Raw Blame History

/* $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);
}
/* ------------------------------------------------------------- */
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.ctr_read_proc = b1ctl_read_proc;
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;
}
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;
}
/* ------------------------------------------------------------- */
#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;
}
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;
}
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);
}
module_init(b1isa_init);
module_exit(b1isa_exit);
Reference in New Issue View Git Blame Copy Permalink