blob: 4639268eb4fe076f6deee4befa9a36c62895a085 [file] [log] [blame]
/* $Id: t1pci.c,v 1.1.4.1 2001/11/20 14:19:34 kai Exp $
*
* Module for AVM T1 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/config.h>
#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 <linux/init.h>
#include <asm/io.h>
#include "capicmd.h"
#include "capiutil.h"
#include "capilli.h"
#include "avmcard.h"
static char *revision = "$Revision: 1.1.4.1 $";
#undef CONFIG_T1PCI_DEBUG
#undef CONFIG_T1PCI_POLLDEBUG
/* ------------------------------------------------------------- */
static struct pci_device_id t1pci_pci_tbl[] __initdata = {
{ PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, PCI_ANY_ID, PCI_ANY_ID },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, t1pci_pci_tbl);
MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 PCI card");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");
/* ------------------------------------------------------------- */
static struct capi_driver_interface *di;
/* ------------------------------------------------------------- */
static void t1pci_remove_ctr(struct capi_ctr *ctrl)
{
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
avmcard *card = cinfo->card;
b1dma_reset(card);
di->detach_ctr(ctrl);
free_irq(card->irq, card);
iounmap(card->mbase);
release_region(card->port, AVMB1_PORTLEN);
ctrl->driverdata = 0;
kfree(card->ctrlinfo);
kfree(card->dma);
kfree(card);
MOD_DEC_USE_COUNT;
}
/* ------------------------------------------------------------- */
static int t1pci_add_card(struct capi_driver *driver, struct capicardparams *p)
{
avmcard *card;
avmctrl_info *cinfo;
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));
card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
if (!card->dma) {
printk(KERN_WARNING "%s: no memory.\n", driver->name);
kfree(card);
MOD_DEC_USE_COUNT;
return -ENOMEM;
}
memset(card->dma, 0, sizeof(avmcard_dmainfo));
cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
if (!cinfo) {
printk(KERN_WARNING "%s: no memory.\n", driver->name);
kfree(card->dma);
kfree(card);
MOD_DEC_USE_COUNT;
return -ENOMEM;
}
memset(cinfo, 0, sizeof(avmctrl_info));
card->ctrlinfo = cinfo;
cinfo->card = card;
sprintf(card->name, "t1pci-%x", p->port);
card->port = p->port;
card->irq = p->irq;
card->membase = p->membase;
card->cardtype = avm_t1pci;
if (check_region(card->port, AVMB1_PORTLEN)) {
printk(KERN_WARNING
"%s: ports 0x%03x-0x%03x in use.\n",
driver->name, card->port, card->port + AVMB1_PORTLEN);
kfree(card->ctrlinfo);
kfree(card->dma);
kfree(card);
MOD_DEC_USE_COUNT;
return -EBUSY;
}
card->mbase = ioremap_nocache(card->membase, 64);
if (!card->mbase) {
printk(KERN_NOTICE "%s: can't remap memory at 0x%lx\n",
driver->name, card->membase);
kfree(card->ctrlinfo);
kfree(card->dma);
kfree(card);
MOD_DEC_USE_COUNT;
return -EIO;
}
b1dma_reset(card);
if ((retval = t1pci_detect(card)) != 0) {
if (retval < 6)
printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
driver->name, card->port, retval);
else
printk(KERN_NOTICE "%s: card at 0x%x, but cabel not connected or T1 has no power (%d)\n",
driver->name, card->port, retval);
iounmap(card->mbase);
kfree(card->ctrlinfo);
kfree(card->dma);
kfree(card);
MOD_DEC_USE_COUNT;
return -EIO;
}
b1dma_reset(card);
request_region(p->port, AVMB1_PORTLEN, card->name);
retval = request_irq(card->irq, b1dma_interrupt, SA_SHIRQ, card->name, card);
if (retval) {
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
driver->name, card->irq);
iounmap(card->mbase);
release_region(card->port, AVMB1_PORTLEN);
kfree(card->ctrlinfo);
kfree(card->dma);
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);
iounmap(card->mbase);
free_irq(card->irq, card);
release_region(card->port, AVMB1_PORTLEN);
kfree(card->ctrlinfo);
kfree(card->dma);
kfree(card);
MOD_DEC_USE_COUNT;
return -EBUSY;
}
card->cardnr = cinfo->capi_ctrl->cnr;
skb_queue_head_init(&card->dma->send_queue);
printk(KERN_INFO
"%s: AVM T1 PCI at i/o %#x, irq %d, mem %#lx\n",
driver->name, card->port, card->irq, card->membase);
return 0;
}
/* ------------------------------------------------------------- */
static char *t1pci_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",
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
);
return cinfo->infobuf;
}
/* ------------------------------------------------------------- */
static struct capi_driver t1pci_driver = {
name: "t1pci",
revision: "0.0",
load_firmware: b1dma_load_firmware,
reset_ctr: b1dma_reset_ctr,
remove_ctr: t1pci_remove_ctr,
register_appl: b1dma_register_appl,
release_appl: b1dma_release_appl,
send_message: b1dma_send_message,
procinfo: t1pci_procinfo,
ctr_read_proc: b1dmactl_read_proc,
driver_read_proc: 0, /* use standard driver_read_proc */
add_card: 0, /* no add_card function */
};
static int ncards = 0;
static int __init t1pci_init(void)
{
struct capi_driver *driver = &t1pci_driver;
struct pci_dev *dev = NULL;
char *p;
int retval;
MOD_INC_USE_COUNT;
if ((p = strchr(revision, ':')) != 0 && p[1]) {
strncpy(driver->revision, p + 2, sizeof(driver->revision));
driver->revision[sizeof(driver->revision)-1] = 0;
if ((p = strchr(driver->revision, '$')) != 0 && p > driver->revision)
*(p-1) = 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);
MOD_DEC_USE_COUNT;
return -EIO;
}
while ((dev = pci_find_device(PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, dev))) {
struct capicardparams param;
if (pci_enable_device(dev) < 0) {
printk(KERN_ERR "%s: failed to enable AVM-T1-PCI\n",
driver->name);
continue;
}
pci_set_master(dev);
param.port = pci_resource_start(dev, 1);
param.irq = dev->irq;
param.membase = pci_resource_start(dev, 0);
printk(KERN_INFO
"%s: PCI BIOS reports AVM-T1-PCI at i/o %#x, irq %d, mem %#x\n",
driver->name, param.port, param.irq, param.membase);
retval = t1pci_add_card(driver, &param);
if (retval != 0) {
printk(KERN_ERR
"%s: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n",
driver->name, param.port, param.irq, param.membase);
continue;
}
ncards++;
}
if (ncards) {
printk(KERN_INFO "%s: %d T1-PCI card(s) detected\n",
driver->name, ncards);
MOD_DEC_USE_COUNT;
return 0;
}
printk(KERN_ERR "%s: NO T1-PCI card detected\n", driver->name);
detach_capi_driver(&t1pci_driver);
MOD_DEC_USE_COUNT;
return -ENODEV;
}
static void __exit t1pci_exit(void)
{
detach_capi_driver(&t1pci_driver);
}
module_init(t1pci_init);
module_exit(t1pci_exit);