- 根目录:
- drivers
- isdn
- hardware
- avm
- b1pci.c
/* $Id: b1pci.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
*
* Module for AVM B1 PCI-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/pci.h>
#include <linux/capi.h>
#include <asm/io.h>
#include <linux/init.h>
#include <linux/isdn/capicmd.h>
#include <linux/isdn/capiutil.h>
#include <linux/isdn/capilli.h>
#include "avmcard.h"
/* ------------------------------------------------------------- */
static char *revision = "$Revision: 1.1.2.2 $";
/* ------------------------------------------------------------- */
static struct pci_device_id b1pci_pci_tbl[] = {
{ PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_B1, PCI_ANY_ID, PCI_ANY_ID },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, b1pci_pci_tbl);
MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 PCI card");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");
/* ------------------------------------------------------------- */
static char *b1pci_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 int b1pci_probe(struct capicardparams *p, struct pci_dev *pdev)
{
avmcard *card;
avmctrl_info *cinfo;
int retval;
card = b1_alloc_card(1);
if (!card) {
printk(KERN_WARNING "b1pci: no memory.\n");
retval = -ENOMEM;
goto err;
}
cinfo = card->ctrlinfo;
sprintf(card->name, "b1pci-%x", p->port);
card->port = p->port;
card->irq = p->irq;
card->cardtype = avm_b1pci;
if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
printk(KERN_WARNING "b1pci: ports 0x%03x-0x%03x in use.\n",
card->port, card->port + AVMB1_PORTLEN);
retval = -EBUSY;
goto err_free;
}
b1_reset(card->port);
retval = b1_detect(card->port, card->cardtype);
if (retval) {
printk(KERN_NOTICE "b1pci: NO card at 0x%x (%d)\n",
card->port, retval);
retval = -ENODEV;
goto err_release_region;
}
b1_reset(card->port);
b1_getrevision(card);
retval = request_irq(card->irq, b1_interrupt, IRQF_SHARED, card->name, card);
if (retval) {
printk(KERN_ERR "b1pci: unable to get IRQ %d.\n", card->irq);
retval = -EBUSY;
goto err_release_region;
}
cinfo->capi_ctrl.driver_name = "b1pci";
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 = b1pci_procinfo;
cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops;
strcpy(cinfo->capi_ctrl.name, card->name);
cinfo->capi_ctrl.owner = THIS_MODULE;
retval = attach_capi_ctr(&cinfo->capi_ctrl);
if (retval) {
printk(KERN_ERR "b1pci: attach controller failed.\n");
goto err_free_irq;
}
if (card->revision >= 4) {
printk(KERN_INFO "b1pci: AVM B1 PCI V4 at i/o %#x, irq %d, revision %d (no dma)\n",
card->port, card->irq, card->revision);
} else {
printk(KERN_INFO "b1pci: AVM B1 PCI at i/o %#x, irq %d, revision %d\n",
card->port, card->irq, card->revision);
}
pci_set_drvdata(pdev, card);
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 void b1pci_remove(struct pci_dev *pdev)
{
avmcard *card = pci_get_drvdata(pdev);
avmctrl_info *cinfo = card->ctrlinfo;
unsigned int port = card->port;
b1_reset(port);
b1_reset(port);
detach_capi_ctr(&cinfo->capi_ctrl);
free_irq(card->irq, card);
release_region(card->port, AVMB1_PORTLEN);
b1_free_card(card);
}
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
/* ------------------------------------------------------------- */
static char *b1pciv4_procinfo(struct capi_ctr *ctrl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
if (!cinfo)
return "";
sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx 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->membase : 0,
cinfo->card ? cinfo->card->revision : 0
);
return cinfo->infobuf;
}
/* ------------------------------------------------------------- */
static int b1pciv4_probe(struct capicardparams *p, struct pci_dev *pdev)
{
avmcard *card;
avmctrl_info *cinfo;
int retval;
card = b1_alloc_card(1);
if (!card) {
printk(KERN_WARNING "b1pci: no memory.\n");
retval = -ENOMEM;
goto err;
}
card->dma = avmcard_dma_alloc("b1pci", pdev, 2048 + 128, 2048 + 128);
if (!card->dma) {
printk(KERN_WARNING "b1pci: dma alloc.\n");
retval = -ENOMEM;
goto err_free;
}
cinfo = card->ctrlinfo;
sprintf(card->name, "b1pciv4-%x", p->port);
card->port = p->port;
card->irq = p->irq;
card->membase = p->membase;
card->cardtype = avm_b1pci;
if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
printk(KERN_WARNING "b1pci: ports 0x%03x-0x%03x in use.\n",
card->port, card->port + AVMB1_PORTLEN);
retval = -EBUSY;
goto err_free_dma;
}
card->mbase = ioremap(card->membase, 64);
if (!card->mbase) {
printk(KERN_NOTICE "b1pci: can't remap memory at 0x%lx\n",
card->membase);
retval = -ENOMEM;
goto err_release_region;
}
b1dma_reset(card);
retval = b1pciv4_detect(card);
if (retval) {
printk(KERN_NOTICE "b1pci: NO card at 0x%x (%d)\n",
card->port, retval);
retval = -ENODEV;
goto err_unmap;
}
b1dma_reset(card);
b1_getrevision(card);
retval = request_irq(card->irq, b1dma_interrupt, IRQF_SHARED, card->name, card);
if (retval) {
printk(KERN_ERR "b1pci: unable to get IRQ %d.\n",
card->irq);
retval = -EBUSY;
goto err_unmap;
}
cinfo->capi_ctrl.owner = THIS_MODULE;
cinfo->capi_ctrl.driver_name = "b1pciv4";
cinfo->capi_ctrl.driverdata = cinfo;
cinfo->capi_ctrl.register_appl = b1dma_register_appl;
cinfo->capi_ctrl.release_appl = b1dma_release_appl;
cinfo->capi_ctrl.send_message = b1dma_send_message;
cinfo->capi_ctrl.load_firmware = b1dma_load_firmware;
cinfo->capi_ctrl.reset_ctr = b1dma_reset_ctr;
cinfo->capi_ctrl.procinfo = b1pciv4_procinfo;
cinfo->capi_ctrl.proc_fops = &b1dmactl_proc_fops;
strcpy(cinfo->capi_ctrl.name, card->name);
retval = attach_capi_ctr(&cinfo->capi_ctrl);
if (retval) {
printk(KERN_ERR "b1pci: attach controller failed.\n");
goto err_free_irq;
}
card->cardnr = cinfo->capi_ctrl.cnr;
printk(KERN_INFO "b1pci: AVM B1 PCI V4 at i/o %#x, irq %d, mem %#lx, revision %d (dma)\n",
card->port, card->irq, card->membase, card->revision);
pci_set_drvdata(pdev, card);
return 0;
err_free_irq:
free_irq(card->irq, card);
err_unmap:
iounmap(card->mbase);
err_release_region:
release_region(card->port, AVMB1_PORTLEN);
err_free_dma:
avmcard_dma_free(card->dma);
err_free:
b1_free_card(card);
err:
return retval;
}
static void b1pciv4_remove(struct pci_dev *pdev)
{
avmcard *card = pci_get_drvdata(pdev);
avmctrl_info *cinfo = card->ctrlinfo;
b1dma_reset(card);
detach_capi_ctr(&cinfo->capi_ctrl);
free_irq(card->irq, card);
iounmap(card->mbase);
release_region(card->port, AVMB1_PORTLEN);
avmcard_dma_free(card->dma);
b1_free_card(card);
}
#endif /* CONFIG_ISDN_DRV_AVMB1_B1PCIV4 */
static int b1pci_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct capicardparams param;
int retval;
if (pci_enable_device(pdev) < 0) {
printk(KERN_ERR "b1pci: failed to enable AVM-B1\n");
return -ENODEV;
}
param.irq = pdev->irq;
if (pci_resource_start(pdev, 2)) { /* B1 PCI V4 */
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
pci_set_master(pdev);
#endif
param.membase = pci_resource_start(pdev, 0);
param.port = pci_resource_start(pdev, 2);
printk(KERN_INFO "b1pci: PCI BIOS reports AVM-B1 V4 at i/o %#x, irq %d, mem %#x\n",
param.port, param.irq, param.membase);
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
retval = b1pciv4_probe(¶m, pdev);
#else
retval = b1pci_probe(¶m, pdev);
#endif
if (retval != 0) {
printk(KERN_ERR "b1pci: no AVM-B1 V4 at i/o %#x, irq %d, mem %#x detected\n",
param.port, param.irq, param.membase);
}
} else {
param.membase = 0;
param.port = pci_resource_start(pdev, 1);
printk(KERN_INFO "b1pci: PCI BIOS reports AVM-B1 at i/o %#x, irq %d\n",
param.port, param.irq);
retval = b1pci_probe(¶m, pdev);
if (retval != 0) {
printk(KERN_ERR "b1pci: no AVM-B1 at i/o %#x, irq %d detected\n",
param.port, param.irq);
}
}
return retval;
}
static void b1pci_pci_remove(struct pci_dev *pdev)
{
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
avmcard *card = pci_get_drvdata(pdev);
if (card->dma)
b1pciv4_remove(pdev);
else
b1pci_remove(pdev);
#else
b1pci_remove(pdev);
#endif
}
static struct pci_driver b1pci_pci_driver = {
.name = "b1pci",
.id_table = b1pci_pci_tbl,
.probe = b1pci_pci_probe,
.remove = b1pci_pci_remove,
};
static struct capi_driver capi_driver_b1pci = {
.name = "b1pci",
.revision = "1.0",
};
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
static struct capi_driver capi_driver_b1pciv4 = {
.name = "b1pciv4",
.revision = "1.0",
};
#endif
static int __init b1pci_init(void)
{
char *p;
char rev[32];
int err;
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");
err = pci_register_driver(&b1pci_pci_driver);
if (!err) {
strlcpy(capi_driver_b1pci.revision, rev, 32);
register_capi_driver(&capi_driver_b1pci);
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
strlcpy(capi_driver_b1pciv4.revision, rev, 32);
register_capi_driver(&capi_driver_b1pciv4);
#endif
printk(KERN_INFO "b1pci: revision %s\n", rev);
}
return err;
}
static void __exit b1pci_exit(void)
{
unregister_capi_driver(&capi_driver_b1pci);
#ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
unregister_capi_driver(&capi_driver_b1pciv4);
#endif
pci_unregister_driver(&b1pci_pci_driver);
}
module_init(b1pci_init);
module_exit(b1pci_exit);