1/* 2 * xfi linux driver. 3 * 4 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. 5 * 6 * This source file is released under GPL v2 license (no other versions). 7 * See the COPYING file included in the main directory of this source 8 * distribution for the license terms and conditions. 9 */ 10 11#include <linux/init.h> 12#include <linux/pci.h> 13#include <linux/moduleparam.h> 14#include <linux/pci_ids.h> 15#include <sound/core.h> 16#include <sound/initval.h> 17#include "ctatc.h" 18#include "cthardware.h" 19 20MODULE_AUTHOR("Creative Technology Ltd"); 21MODULE_DESCRIPTION("X-Fi driver version 1.03"); 22MODULE_LICENSE("GPL v2"); 23MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}"); 24 25static unsigned int reference_rate = 48000; 26static unsigned int multiple = 2; 27MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)"); 28module_param(reference_rate, uint, S_IRUGO); 29MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)"); 30module_param(multiple, uint, S_IRUGO); 31 32static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 33static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 34static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 35static unsigned int subsystem[SNDRV_CARDS]; 36 37module_param_array(index, int, NULL, 0444); 38MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver"); 39module_param_array(id, charp, NULL, 0444); 40MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver"); 41module_param_array(enable, bool, NULL, 0444); 42MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver"); 43module_param_array(subsystem, int, NULL, 0444); 44MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver"); 45 46static DEFINE_PCI_DEVICE_TABLE(ct_pci_dev_ids) = { 47 /* only X-Fi is supported, so... */ 48 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1), 49 .driver_data = ATC20K1, 50 }, 51 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2), 52 .driver_data = ATC20K2, 53 }, 54 { 0, } 55}; 56MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids); 57 58static int __devinit 59ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 60{ 61 static int dev; 62 struct snd_card *card; 63 struct ct_atc *atc; 64 int err; 65 66 if (dev >= SNDRV_CARDS) 67 return -ENODEV; 68 69 if (!enable[dev]) { 70 dev++; 71 return -ENOENT; 72 } 73 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 74 if (err) 75 return err; 76 if ((reference_rate != 48000) && (reference_rate != 44100)) { 77 printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n", 78 reference_rate); 79 printk(KERN_ERR "ctxfi: The valid values for reference_rate " 80 "are 48000 and 44100, Value 48000 is assumed.\n"); 81 reference_rate = 48000; 82 } 83 if ((multiple != 1) && (multiple != 2)) { 84 printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n", 85 multiple); 86 printk(KERN_ERR "ctxfi: The valid values for multiple are " 87 "1 and 2, Value 2 is assumed.\n"); 88 multiple = 2; 89 } 90 err = ct_atc_create(card, pci, reference_rate, multiple, 91 pci_id->driver_data, subsystem[dev], &atc); 92 if (err < 0) 93 goto error; 94 95 card->private_data = atc; 96 97 /* Create alsa devices supported by this card */ 98 err = ct_atc_create_alsa_devs(atc); 99 if (err < 0) 100 goto error; 101 102 strcpy(card->driver, "SB-XFi"); 103 strcpy(card->shortname, "Creative X-Fi"); 104 snprintf(card->longname, sizeof(card->longname), "%s %s %s", 105 card->shortname, atc->chip_name, atc->model_name); 106 107 err = snd_card_register(card); 108 if (err < 0) 109 goto error; 110 111 pci_set_drvdata(pci, card); 112 dev++; 113 114 return 0; 115 116error: 117 snd_card_free(card); 118 return err; 119} 120 121static void __devexit ct_card_remove(struct pci_dev *pci) 122{ 123 snd_card_free(pci_get_drvdata(pci)); 124 pci_set_drvdata(pci, NULL); 125} 126 127#ifdef CONFIG_PM 128static int ct_card_suspend(struct pci_dev *pci, pm_message_t state) 129{ 130 struct snd_card *card = pci_get_drvdata(pci); 131 struct ct_atc *atc = card->private_data; 132 133 return atc->suspend(atc, state); 134} 135 136static int ct_card_resume(struct pci_dev *pci) 137{ 138 struct snd_card *card = pci_get_drvdata(pci); 139 struct ct_atc *atc = card->private_data; 140 141 return atc->resume(atc); 142} 143#endif 144 145static struct pci_driver ct_driver = { 146 .name = "SB-XFi", 147 .id_table = ct_pci_dev_ids, 148 .probe = ct_card_probe, 149 .remove = __devexit_p(ct_card_remove), 150#ifdef CONFIG_PM 151 .suspend = ct_card_suspend, 152 .resume = ct_card_resume, 153#endif 154}; 155 156static int __init ct_card_init(void) 157{ 158 return pci_register_driver(&ct_driver); 159} 160 161static void __exit ct_card_exit(void) 162{ 163 pci_unregister_driver(&ct_driver); 164} 165 166module_init(ct_card_init) 167module_exit(ct_card_exit) 168