LXR linux/sound/pci/ctxfi/xfi.c

   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
  18MODULE_AUTHOR("Creative Technology Ltd");
  19MODULE_DESCRIPTION("X-Fi driver version 1.03");
  20MODULE_LICENSE("GPL v2");
  21MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
  22
  23static unsigned int reference_rate = 48000;
  24static unsigned int multiple = 2;
  25MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
  26module_param(reference_rate, uint, 0444);
  27MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
  28module_param(multiple, uint, 0444);
  29
  30static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  31static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  32static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  33static unsigned int subsystem[SNDRV_CARDS];
  34
  35module_param_array(index, int, NULL, 0444);
  36MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
  37module_param_array(id, charp, NULL, 0444);
  38MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
  39module_param_array(enable, bool, NULL, 0444);
  40MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
  41module_param_array(subsystem, int, NULL, 0444);
  42MODULE_PARM_DESC(subsystem, "Override subsystem ID for Creative X-Fi driver");
  43
  44static const struct pci_device_id ct_pci_dev_ids[] = {
  45        /* only X-Fi is supported, so... */
  46        { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
  47          .driver_data = ATC20K1,
  48        },
  49        { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
  50          .driver_data = ATC20K2,
  51        },
  52        { 0, }
  53};
  54MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
  55
  56static int
  57ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
  58{
  59        static int dev;
  60        struct snd_card *card;
  61        struct ct_atc *atc;
  62        int err;
  63
  64        if (dev >= SNDRV_CARDS)
  65                return -ENODEV;
  66
  67        if (!enable[dev]) {
  68                dev++;
  69                return -ENOENT;
  70        }
  71        err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
  72                           0, &card);
  73        if (err)
  74                return err;
  75        if ((reference_rate != 48000) && (reference_rate != 44100)) {
  76                dev_err(card->dev,
  77                        "Invalid reference_rate value %u!!!\n",
  78                        reference_rate);
  79                dev_err(card->dev,
  80                        "The valid values for reference_rate are 48000 and 44100, Value 48000 is assumed.\n");
  81                reference_rate = 48000;
  82        }
  83        if ((multiple != 1) && (multiple != 2) && (multiple != 4)) {
  84                dev_err(card->dev, "Invalid multiple value %u!!!\n",
  85                        multiple);
  86                dev_err(card->dev,
  87                        "The valid values for multiple are 1, 2 and 4, 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 ct_card_remove(struct pci_dev *pci)
 122{
 123        snd_card_free(pci_get_drvdata(pci));
 124}
 125
 126#ifdef CONFIG_PM_SLEEP
 127static int ct_card_suspend(struct device *dev)
 128{
 129        struct snd_card *card = dev_get_drvdata(dev);
 130        struct ct_atc *atc = card->private_data;
 131
 132        return atc->suspend(atc);
 133}
 134
 135static int ct_card_resume(struct device *dev)
 136{
 137        struct snd_card *card = dev_get_drvdata(dev);
 138        struct ct_atc *atc = card->private_data;
 139
 140        return atc->resume(atc);
 141}
 142
 143static SIMPLE_DEV_PM_OPS(ct_card_pm, ct_card_suspend, ct_card_resume);
 144#define CT_CARD_PM_OPS  &ct_card_pm
 145#else
 146#define CT_CARD_PM_OPS  NULL
 147#endif
 148
 149static struct pci_driver ct_driver = {
 150        .name = KBUILD_MODNAME,
 151        .id_table = ct_pci_dev_ids,
 152        .probe = ct_card_probe,
 153        .remove = ct_card_remove,
 154        .driver = {
 155                .pm = CT_CARD_PM_OPS,
 156        },
 157};
 158
 159module_pci_driver(ct_driver);
 160