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1// SPDX-License-Identifier: GPL-2.0-only2/*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 18MODULE_AUTHOR("Creative Technology Ltd");19MODULE_DESCRIPTION("X-Fi driver version 1.03");20MODULE_LICENSE("GPL v2");21 22static unsigned int reference_rate = 48000;23static unsigned int multiple = 2;24MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");25module_param(reference_rate, uint, 0444);26MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");27module_param(multiple, uint, 0444);28 29static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;30static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;31static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;32static unsigned int subsystem[SNDRV_CARDS];33 34module_param_array(index, int, NULL, 0444);35MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");36module_param_array(id, charp, NULL, 0444);37MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");38module_param_array(enable, bool, NULL, 0444);39MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");40module_param_array(subsystem, int, NULL, 0444);41MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver");42 43static 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};53MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);54 55static int56ct_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 115error:116 snd_card_free(card);117 return err;118}119 120static void ct_card_remove(struct pci_dev *pci)121{122 snd_card_free(pci_get_drvdata(pci));123}124 125#ifdef CONFIG_PM_SLEEP126static 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 134static 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 142static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume);143#define CT_CARD_PM_OPS &ct_card_pm144#else145#define CT_CARD_PM_OPS NULL146#endif147 148static 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 158module_pci_driver(ct_driver);159