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/*
* xfi linux driver.
*
* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
*
* This source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/moduleparam.h>
#include <linux/pci_ids.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "ctatc.h"
MODULE_AUTHOR("Creative Technology Ltd");
MODULE_DESCRIPTION("X-Fi driver version 1.03");
MODULE_LICENSE("GPL v2");
MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
static unsigned int reference_rate = 48000;
static unsigned int multiple = 2;
MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
module_param(reference_rate, uint, S_IRUGO);
MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
module_param(multiple, uint, S_IRUGO);
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
static struct pci_device_id ct_pci_dev_ids[] = {
/* only X-Fi is supported, so... */
{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1) },
{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2) },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
static int __devinit
ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct ct_atc *atc;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
if (err)
return err;
if ((reference_rate != 48000) && (reference_rate != 44100)) {
printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n",
reference_rate);
printk(KERN_ERR "ctxfi: The valid values for reference_rate "
"are 48000 and 44100, Value 48000 is assumed.\n");
reference_rate = 48000;
}
if ((multiple != 1) && (multiple != 2)) {
printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n",
multiple);
printk(KERN_ERR "ctxfi: The valid values for multiple are "
"1 and 2, Value 2 is assumed.\n");
multiple = 2;
}
err = ct_atc_create(card, pci, reference_rate, multiple, &atc);
if (err < 0)
goto error;
card->private_data = atc;
/* Create alsa devices supported by this card */
err = atc->create_alsa_devs(atc);
if (err < 0)
goto error;
strcpy(card->driver, "SB-XFi");
strcpy(card->shortname, "Creative X-Fi");
strcpy(card->longname, "Creative ALSA Driver X-Fi");
err = snd_card_register(card);
if (err < 0)
goto error;
pci_set_drvdata(pci, card);
dev++;
return 0;
error:
snd_card_free(card);
return err;
}
static void __devexit ct_card_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
static struct pci_driver ct_driver = {
.name = "SB-XFi",
.id_table = ct_pci_dev_ids,
.probe = ct_card_probe,
.remove = __devexit_p(ct_card_remove),
};
static int __init ct_card_init(void)
{
return pci_register_driver(&ct_driver);
}
static void __exit ct_card_exit(void)
{
pci_unregister_driver(&ct_driver);
}
module_init(ct_card_init)
module_exit(ct_card_exit)
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