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 20 MODULE_AUTHOR("Creative Technology Ltd"); 21 MODULE_DESCRIPTION("X-Fi driver version 1.03"); 22 MODULE_LICENSE("GPL v2"); 23 MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}"); 24 25 static unsigned int reference_rate = 48000; 26 static unsigned int multiple = 2; 27 MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)"); 28 module_param(reference_rate, uint, S_IRUGO); 29 MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)"); 30 module_param(multiple, uint, S_IRUGO); 31 32 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 33 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 34 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 35 36 module_param_array(index, int, NULL, 0444); 37 MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver"); 38 module_param_array(id, charp, NULL, 0444); 39 MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver"); 40 module_param_array(enable, bool, NULL, 0444); 41 MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver"); 42 43 static struct pci_device_id ct_pci_dev_ids[] = { 44 /* only X-Fi is supported, so... */ 45 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1), 46 .driver_data = ATC20K1, 47 }, 48 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2), 49 .driver_data = ATC20K2, 50 }, 51 { 0, } 52 }; 53 MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids); 54 55 static int __devinit 56 ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 57 { 58 static int dev; 59 struct snd_card *card; 60 struct ct_atc *atc; 61 int err; 62 63 if (dev >= SNDRV_CARDS) 64 return -ENODEV; 65 66 if (!enable[dev]) { 67 dev++; 68 return -ENOENT; 69 } 70 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 71 if (err) 72 return err; 73 if ((reference_rate != 48000) && (reference_rate != 44100)) { 74 printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n", 75 reference_rate); 76 printk(KERN_ERR "ctxfi: The valid values for reference_rate " 77 "are 48000 and 44100, Value 48000 is assumed.\n"); 78 reference_rate = 48000; 79 } 80 if ((multiple != 1) && (multiple != 2)) { 81 printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n", 82 multiple); 83 printk(KERN_ERR "ctxfi: The valid values for multiple are " 84 "1 and 2, Value 2 is assumed.\n"); 85 multiple = 2; 86 } 87 err = ct_atc_create(card, pci, reference_rate, multiple, 88 pci_id->driver_data, &atc); 89 if (err < 0) 90 goto error; 91 92 card->private_data = atc; 93 94 /* Create alsa devices supported by this card */ 95 err = ct_atc_create_alsa_devs(atc); 96 if (err < 0) 97 goto error; 98 99 strcpy(card->driver, "SB-XFi"); 100 strcpy(card->shortname, "Creative X-Fi"); 101 snprintf(card->longname, sizeof(card->longname), "%s %s %s", 102 card->shortname, atc->chip_name, atc->model_name); 103 104 err = snd_card_register(card); 105 if (err < 0) 106 goto error; 107 108 pci_set_drvdata(pci, card); 109 dev++; 110 111 return 0; 112 113 error: 114 snd_card_free(card); 115 return err; 116 } 117 118 static void __devexit ct_card_remove(struct pci_dev *pci) 119 { 120 snd_card_free(pci_get_drvdata(pci)); 121 pci_set_drvdata(pci, NULL); 122 } 123 124 static struct pci_driver ct_driver = { 125 .name = "SB-XFi", 126 .id_table = ct_pci_dev_ids, 127 .probe = ct_card_probe, 128 .remove = __devexit_p(ct_card_remove), 129 }; 130 131 static int __init ct_card_init(void) 132 { 133 return pci_register_driver(&ct_driver); 134 } 135 136 static void __exit ct_card_exit(void) 137 { 138 pci_unregister_driver(&ct_driver); 139 } 140 141 module_init(ct_card_init) 142 module_exit(ct_card_exit) 143