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
  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);