forked from Minki/linux
126 lines
3.0 KiB
C
126 lines
3.0 KiB
C
/*
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* xfi linux driver.
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*
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* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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*
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* This source file is released under GPL v2 license (no other versions).
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* See the COPYING file included in the main directory of this source
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* distribution for the license terms and conditions.
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*/
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/moduleparam.h>
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#include <linux/pci_ids.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include "ctatc.h"
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MODULE_AUTHOR("Creative Technology Ltd");
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MODULE_DESCRIPTION("X-Fi driver version 1.03");
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MODULE_LICENSE("GPLv2");
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MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
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static unsigned int reference_rate = 48000;
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static unsigned int multiple = 2;
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module_param(reference_rate, uint, S_IRUGO);
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module_param(multiple, uint, S_IRUGO);
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
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static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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static struct pci_device_id ct_pci_dev_ids[] = {
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/* only X-Fi is supported, so... */
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{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1) },
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{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2) },
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{ 0, }
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};
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MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
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static int __devinit
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ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
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{
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static int dev;
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struct snd_card *card;
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struct ct_atc *atc;
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int err;
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if (dev >= SNDRV_CARDS)
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return -ENODEV;
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if (!enable[dev]) {
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dev++;
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return -ENOENT;
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}
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err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
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if (err)
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return err;
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if ((reference_rate != 48000) && (reference_rate != 44100)) {
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printk(KERN_ERR "Invalid reference_rate value %u!!!\n"
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"The valid values for reference_rate "
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"are 48000 and 44100.\nValue 48000 is "
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"assumed.\n", reference_rate);
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reference_rate = 48000;
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}
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if ((multiple != 1) && (multiple != 2)) {
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printk(KERN_ERR "Invalid multiple value %u!!!\nThe valid "
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"values for multiple are 1 and 2.\nValue 2 "
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"is assumed.\n", multiple);
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multiple = 2;
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}
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err = ct_atc_create(card, pci, reference_rate, multiple, &atc);
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if (err < 0)
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goto error;
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card->private_data = atc;
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/* Create alsa devices supported by this card */
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err = atc->create_alsa_devs(atc);
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if (err < 0)
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goto error;
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strcpy(card->driver, "SB-XFi");
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strcpy(card->shortname, "Creative X-Fi");
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strcpy(card->longname, "Creative ALSA Driver X-Fi");
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err = snd_card_register(card);
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if (err < 0)
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goto error;
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pci_set_drvdata(pci, card);
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dev++;
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return 0;
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error:
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snd_card_free(card);
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return err;
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}
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static void __devexit ct_card_remove(struct pci_dev *pci)
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{
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snd_card_free(pci_get_drvdata(pci));
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pci_set_drvdata(pci, NULL);
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}
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static struct pci_driver ct_driver = {
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.name = "SB-XFi",
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.id_table = ct_pci_dev_ids,
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.probe = ct_card_probe,
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.remove = __devexit_p(ct_card_remove),
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};
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static int __init ct_card_init(void)
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{
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return pci_register_driver(&ct_driver);
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}
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static void __exit ct_card_exit(void)
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{
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pci_unregister_driver(&ct_driver);
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}
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module_init(ct_card_init)
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module_exit(ct_card_exit)
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