LXR linux/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
  21MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  22MODULE_DESCRIPTION("Cirrus Logic Sound Fusion CS46XX");
  23MODULE_LICENSE("GPL");
  24
  25static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  26static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  27static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  28static bool external_amp[SNDRV_CARDS];
  29static bool thinkpad[SNDRV_CARDS];
  30static bool mmap_valid[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
  31
  32module_param_array(index, int, NULL, 0444);
  33MODULE_PARM_DESC(index, "Index value for the CS46xx soundcard.");
  34module_param_array(id, charp, NULL, 0444);
  35MODULE_PARM_DESC(id, "ID string for the CS46xx soundcard.");
  36module_param_array(enable, bool, NULL, 0444);
  37MODULE_PARM_DESC(enable, "Enable CS46xx soundcard.");
  38module_param_array(external_amp, bool, NULL, 0444);
  39MODULE_PARM_DESC(external_amp, "Force to enable external amplifier.");
  40module_param_array(thinkpad, bool, NULL, 0444);
  41MODULE_PARM_DESC(thinkpad, "Force to enable Thinkpad's CLKRUN control.");
  42module_param_array(mmap_valid, bool, NULL, 0444);
  43MODULE_PARM_DESC(mmap_valid, "Support OSS mmap.");
  44
  45static 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
  52MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
  53
  54static 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                return err;
  78        card->private_data = chip;
  79        chip->accept_valid = mmap_valid[dev];
  80        err = snd_cs46xx_pcm(chip, 0);
  81        if (err < 0)
  82                return err;
  83#ifdef CONFIG_SND_CS46XX_NEW_DSP
  84        err = snd_cs46xx_pcm_rear(chip, 1);
  85        if (err < 0)
  86                return err;
  87        err = snd_cs46xx_pcm_iec958(chip, 2);
  88        if (err < 0)
  89                return err;
  90#endif
  91        err = snd_cs46xx_mixer(chip, 2);
  92        if (err < 0)
  93                return err;
  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                        return err;
  99        }
 100#endif
 101        err = snd_cs46xx_midi(chip, 0);
 102        if (err < 0)
 103                return err;
 104        err = snd_cs46xx_start_dsp(chip);
 105        if (err < 0)
 106                return err;
 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                return err;
 121
 122        pci_set_drvdata(pci, card);
 123        dev++;
 124        return 0;
 125}
 126
 127static struct pci_driver cs46xx_driver = {
 128        .name = KBUILD_MODNAME,
 129        .id_table = snd_cs46xx_ids,
 130        .probe = snd_card_cs46xx_probe,
 131#ifdef CONFIG_PM_SLEEP
 132        .driver = {
 133                .pm = &snd_cs46xx_pm,
 134        },
 135#endif
 136};
 137
 138module_pci_driver(cs46xx_driver);
 139