/* * 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 <linux/module.h> #include <sound/core.h> #include <sound/initval.h> #include "ctatc.h" #include "cthardware.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 bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; static unsigned int subsystem[SNDRV_CARDS]; 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"); module_param_array(subsystem, int, NULL, 0444); MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver"); static DEFINE_PCI_DEVICE_TABLE(ct_pci_dev_ids) = { /* only X-Fi is supported, so... */ { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1), .driver_data = ATC20K1, }, { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2), .driver_data = ATC20K2, }, { 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) && (multiple != 4)) { printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n", multiple); printk(KERN_ERR "ctxfi: The valid values for multiple are " "1, 2 and 4, Value 2 is assumed.\n"); multiple = 2; } err = ct_atc_create(card, pci, reference_rate, multiple, pci_id->driver_data, subsystem[dev], &atc); if (err < 0) goto error; card->private_data = atc; /* Create alsa devices supported by this card */ err = ct_atc_create_alsa_devs(atc); if (err < 0) goto error; strcpy(card->driver, "SB-XFi"); strcpy(card->shortname, "Creative X-Fi"); snprintf(card->longname, sizeof(card->longname), "%s %s %s", card->shortname, atc->chip_name, atc->model_name); 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); } #ifdef CONFIG_PM static int ct_card_suspend(struct pci_dev *pci, pm_message_t state) { struct snd_card *card = pci_get_drvdata(pci); struct ct_atc *atc = card->private_data; return atc->suspend(atc, state); } static int ct_card_resume(struct pci_dev *pci) { struct snd_card *card = pci_get_drvdata(pci); struct ct_atc *atc = card->private_data; return atc->resume(atc); } #endif static struct pci_driver ct_driver = { .name = KBUILD_MODNAME, .id_table = ct_pci_dev_ids, .probe = ct_card_probe, .remove = __devexit_p(ct_card_remove), #ifdef CONFIG_PM .suspend = ct_card_suspend, .resume = ct_card_resume, #endif }; 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)