1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * xfi linux driver. 4 * 5 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. 6 */ 7 8 #include <linux/init.h> 9 #include <linux/pci.h> 10 #include <linux/moduleparam.h> 11 #include <linux/pci_ids.h> 12 #include <linux/module.h> 13 #include <sound/core.h> 14 #include <sound/initval.h> 15 #include "ctatc.h" 16 #include "cthardware.h" 17 18 MODULE_AUTHOR("Creative Technology Ltd"); 19 MODULE_DESCRIPTION("X-Fi driver version 1.03"); 20 MODULE_LICENSE("GPL v2"); 21 22 static unsigned int reference_rate = 48000; 23 static unsigned int multiple = 2; 24 MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)"); 25 module_param(reference_rate, uint, 0444); 26 MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)"); 27 module_param(multiple, uint, 0444); 28 29 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 32 static unsigned int subsystem[SNDRV_CARDS]; 33 34 module_param_array(index, int, NULL, 0444); 35 MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver"); 36 module_param_array(id, charp, NULL, 0444); 37 MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver"); 38 module_param_array(enable, bool, NULL, 0444); 39 MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver"); 40 module_param_array(subsystem, int, NULL, 0444); 41 MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver"); 42 43 static const 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 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_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 71 0, &card); 72 if (err) 73 return err; 74 if ((reference_rate != 48000) && (reference_rate != 44100)) { 75 dev_err(card->dev, 76 "Invalid reference_rate value %u!!!\n", 77 reference_rate); 78 dev_err(card->dev, 79 "The valid values for reference_rate are 48000 and 44100, Value 48000 is assumed.\n"); 80 reference_rate = 48000; 81 } 82 if ((multiple != 1) && (multiple != 2) && (multiple != 4)) { 83 dev_err(card->dev, "Invalid multiple value %u!!!\n", 84 multiple); 85 dev_err(card->dev, 86 "The valid values for multiple are 1, 2 and 4, Value 2 is assumed.\n"); 87 multiple = 2; 88 } 89 err = ct_atc_create(card, pci, reference_rate, multiple, 90 pci_id->driver_data, subsystem[dev], &atc); 91 if (err < 0) 92 goto error; 93 94 card->private_data = atc; 95 96 /* Create alsa devices supported by this card */ 97 err = ct_atc_create_alsa_devs(atc); 98 if (err < 0) 99 goto error; 100 101 strcpy(card->driver, "SB-XFi"); 102 strcpy(card->shortname, "Creative X-Fi"); 103 snprintf(card->longname, sizeof(card->longname), "%s %s %s", 104 card->shortname, atc->chip_name, atc->model_name); 105 106 err = snd_card_register(card); 107 if (err < 0) 108 goto error; 109 110 pci_set_drvdata(pci, card); 111 dev++; 112 113 return 0; 114 115 error: 116 snd_card_free(card); 117 return err; 118 } 119 120 static void ct_card_remove(struct pci_dev *pci) 121 { 122 snd_card_free(pci_get_drvdata(pci)); 123 } 124 125 #ifdef CONFIG_PM_SLEEP 126 static int ct_card_suspend(struct device *dev) 127 { 128 struct snd_card *card = dev_get_drvdata(dev); 129 struct ct_atc *atc = card->private_data; 130 131 return atc->suspend(atc); 132 } 133 134 static int ct_card_resume(struct device *dev) 135 { 136 struct snd_card *card = dev_get_drvdata(dev); 137 struct ct_atc *atc = card->private_data; 138 139 return atc->resume(atc); 140 } 141 142 static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume); 143 #define CT_CARD_PM_OPS &ct_card_pm 144 #else 145 #define CT_CARD_PM_OPS NULL 146 #endif 147 148 static struct pci_driver ct_driver = { 149 .name = KBUILD_MODNAME, 150 .id_table = ct_pci_dev_ids, 151 .probe = ct_card_probe, 152 .remove = ct_card_remove, 153 .driver = { 154 .pm = CT_CARD_PM_OPS, 155 }, 156 }; 157 158 module_pci_driver(ct_driver); 159