sound/pci/cs46xx/cs46xx.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  The driver for the Cirrus Logic's Sound Fusion CS46XX based soundcards
   4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5  */
   6
   7 /*
   8   NOTES:
   9   - sometimes the sound is metallic and sibilant, unloading and
  10     reloading the module may solve this.
  11 */
  12
  13 #include <linux/pci.h>
  14 #include <linux/time.h>
  15 #include <linux/init.h>
  16 #include <linux/module.h>
  17 #include <sound/core.h>
  18 #include "cs46xx.h"
  19 #include <sound/initval.h>
  20
  21 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  22 MODULE_DESCRIPTION("Cirrus Logic Sound Fusion CS46XX");
  23 MODULE_LICENSE("GPL");
  24
  25 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  26 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  27 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  28 static bool external_amp[SNDRV_CARDS];
  29 static bool thinkpad[SNDRV_CARDS];
  30 static bool mmap_valid[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
  31
  32 module_param_array(index, int, NULL, 0444);
  33 MODULE_PARM_DESC(index, "Index value for the CS46xx soundcard.");
  34 module_param_array(id, charp, NULL, 0444);
  35 MODULE_PARM_DESC(id, "ID string for the CS46xx soundcard.");
  36 module_param_array(enable, bool, NULL, 0444);
  37 MODULE_PARM_DESC(enable, "Enable CS46xx soundcard.");
  38 module_param_array(external_amp, bool, NULL, 0444);
  39 MODULE_PARM_DESC(external_amp, "Force to enable external amplifier.");
  40 module_param_array(thinkpad, bool, NULL, 0444);
  41 MODULE_PARM_DESC(thinkpad, "Force to enable Thinkpad's CLKRUN control.");
  42 module_param_array(mmap_valid, bool, NULL, 0444);
  43 MODULE_PARM_DESC(mmap_valid, "Support OSS mmap.");
  44
  45 static const struct pci_device_id snd_cs46xx_ids[] = {
  46         { PCI_VDEVICE(CIRRUS, 0x6001), 0, },   /* CS4280 */
  47         { PCI_VDEVICE(CIRRUS, 0x6003), 0, },   /* CS4612 */
  48         { PCI_VDEVICE(CIRRUS, 0x6004), 0, },   /* CS4615 */
  49         { 0, }
  50 };
  51
  52 MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
  53
  54 static int snd_card_cs46xx_probe(struct pci_dev *pci,
  55                                  const struct pci_device_id *pci_id)
  56 {
  57         static int dev;
  58         struct snd_card *card;
  59         struct snd_cs46xx *chip;
  60         int err;
  61
  62         if (dev >= SNDRV_CARDS)
  63                 return -ENODEV;
  64         if (!enable[dev]) {
  65                 dev++;
  66                 return -ENOENT;
  67         }
  68
  69         err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
  70                                 sizeof(*chip), &card);
  71         if (err < 0)
  72                 return err;
  73         chip = card->private_data;
  74         err = snd_cs46xx_create(card, pci,
  75                                 external_amp[dev], thinkpad[dev]);
  76         if (err < 0)
  77                 goto error;
  78         card->private_data = chip;
  79         chip->accept_valid = mmap_valid[dev];
  80         err = snd_cs46xx_pcm(chip, 0);
  81         if (err < 0)
  82                 goto error;
  83 #ifdef CONFIG_SND_CS46XX_NEW_DSP
  84         err = snd_cs46xx_pcm_rear(chip, 1);
  85         if (err < 0)
  86                 goto error;
  87         err = snd_cs46xx_pcm_iec958(chip, 2);
  88         if (err < 0)
  89                 goto error;
  90 #endif
  91         err = snd_cs46xx_mixer(chip, 2);
  92         if (err < 0)
  93                 goto error;
  94 #ifdef CONFIG_SND_CS46XX_NEW_DSP
  95         if (chip->nr_ac97_codecs ==2) {
  96                 err = snd_cs46xx_pcm_center_lfe(chip, 3);
  97                 if (err < 0)
  98                         goto error;
  99         }
 100 #endif
 101         err = snd_cs46xx_midi(chip, 0);
 102         if (err < 0)
 103                 goto error;
 104         err = snd_cs46xx_start_dsp(chip);
 105         if (err < 0)
 106                 goto error;
 107
 108         snd_cs46xx_gameport(chip);
 109
 110         strcpy(card->driver, "CS46xx");
 111         strcpy(card->shortname, "Sound Fusion CS46xx");
 112         sprintf(card->longname, "%s at 0x%lx/0x%lx, irq %i",
 113                 card->shortname,
 114                 chip->ba0_addr,
 115                 chip->ba1_addr,
 116                 chip->irq);
 117
 118         err = snd_card_register(card);
 119         if (err < 0)
 120                 goto error;
 121
 122         pci_set_drvdata(pci, card);
 123         dev++;
 124         return 0;
 125
 126  error:
 127         snd_card_free(card);
 128         return err;
 129 }
 130
 131 static struct pci_driver cs46xx_driver = {
 132         .name = KBUILD_MODNAME,
 133         .id_table = snd_cs46xx_ids,
 134         .probe = snd_card_cs46xx_probe,
 135 #ifdef CONFIG_PM_SLEEP
 136         .driver = {
 137                 .pm = &snd_cs46xx_pm,
 138         },
 139 #endif
 140 };
 141
 142 module_pci_driver(cs46xx_driver);